Home / 721,891.57-1,083,901.85-402,667.15

Finding the Fourth Proportional to 721,891.57, 1,083,901.85 and 402,667.15

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Solution

The fourth proportional to 721,891.57, 1,083,901.85 and 402,667.15 is: 604,594.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,891.57 : 1,083,901.85 = 402,667.15 : x
  2. Step 2: Convert to fraction form
    721,891.57/1,083,901.85 = 402,667.15/x
  3. Step 3: Cross multiply
    721,891.57x = 1,083,901.85 × 402,667.15
  4. Step 4: Simplify right side
    721,891.57x = 436,451,668,819.23
  5. Step 5: Solve for x
    x = 436,451,668,819.23/721,891.57
  6. Step 6: Final answer
    x = 604,594.49

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Double scale
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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.