Home / 730,497.96-1,008,187.32-420,394.20

Finding the Fourth Proportional to 730,497.96, 1,008,187.32 and 420,394.20

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Solution

The fourth proportional to 730,497.96, 1,008,187.32 and 420,394.20 is: 580,201.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,497.96 : 1,008,187.32 = 420,394.20 : x
  2. Step 2: Convert to fraction form
    730,497.96/1,008,187.32 = 420,394.20/x
  3. Step 3: Cross multiply
    730,497.96x = 1,008,187.32 × 420,394.20
  4. Step 4: Simplify right side
    730,497.96x = 423,836,101,841.54
  5. Step 5: Solve for x
    x = 423,836,101,841.54/730,497.96
  6. Step 6: Final answer
    x = 580,201.62

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.