Home / 721,904.40-1,082,856.60-301,125.60

Finding the Fourth Proportional to 721,904.40, 1,082,856.60 and 301,125.60

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Solution

The fourth proportional to 721,904.40, 1,082,856.60 and 301,125.60 is: 451,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,904.40 : 1,082,856.60 = 301,125.60 : x
  2. Step 2: Convert to fraction form
    721,904.40/1,082,856.60 = 301,125.60/x
  3. Step 3: Cross multiply
    721,904.40x = 1,082,856.60 × 301,125.60
  4. Step 4: Simplify right side
    721,904.40x = 326,075,843,388.96
  5. Step 5: Solve for x
    x = 326,075,843,388.96/721,904.40
  6. Step 6: Final answer
    x = 451,688.40

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Half scale
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Double scale
Find fourth proportional to 721,905.40, 1,082,858.10 and 301,126.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.