Home / 721,706.10-1,082,818.35-301,110.90

Finding the Fourth Proportional to 721,706.10, 1,082,818.35 and 301,110.90

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Solution

The fourth proportional to 721,706.10, 1,082,818.35 and 301,110.90 is: 451,774.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,706.10 : 1,082,818.35 = 301,110.90 : x
  2. Step 2: Convert to fraction form
    721,706.10/1,082,818.35 = 301,110.90/x
  3. Step 3: Cross multiply
    721,706.10x = 1,082,818.35 × 301,110.90
  4. Step 4: Simplify right side
    721,706.10x = 326,048,407,905.02
  5. Step 5: Solve for x
    x = 326,048,407,905.02/721,706.10
  6. Step 6: Final answer
    x = 451,774.49

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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.