Home / 830,181.80-1,245,272.70-546,746.60

Finding the Fourth Proportional to 830,181.80, 1,245,272.70 and 546,746.60

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Solution

The fourth proportional to 830,181.80, 1,245,272.70 and 546,746.60 is: 820,119.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,181.80 : 1,245,272.70 = 546,746.60 : x
  2. Step 2: Convert to fraction form
    830,181.80/1,245,272.70 = 546,746.60/x
  3. Step 3: Cross multiply
    830,181.80x = 1,245,272.70 × 546,746.60
  4. Step 4: Simplify right side
    830,181.80x = 680,848,614,797.82
  5. Step 5: Solve for x
    x = 680,848,614,797.82/830,181.80
  6. Step 6: Final answer
    x = 820,119.90

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Double scale
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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.