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Finding the Fourth Proportional to 509,387.97, 702,924.52 and 283,025.73

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Solution

The fourth proportional to 509,387.97, 702,924.52 and 283,025.73 is: 390,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,387.97 : 702,924.52 = 283,025.73 : x
  2. Step 2: Convert to fraction form
    509,387.97/702,924.52 = 283,025.73/x
  3. Step 3: Cross multiply
    509,387.97x = 702,924.52 × 283,025.73
  4. Step 4: Simplify right side
    509,387.97x = 198,945,725,407.90
  5. Step 5: Solve for x
    x = 198,945,725,407.90/509,387.97
  6. Step 6: Final answer
    x = 390,558.35

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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.