Home / 442,025.43-663,501.92-391,746.15

Finding the Fourth Proportional to 442,025.43, 663,501.92 and 391,746.15

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Solution

The fourth proportional to 442,025.43, 663,501.92 and 391,746.15 is: 588,030.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,025.43 : 663,501.92 = 391,746.15 : x
  2. Step 2: Convert to fraction form
    442,025.43/663,501.92 = 391,746.15/x
  3. Step 3: Cross multiply
    442,025.43x = 663,501.92 × 391,746.15
  4. Step 4: Simplify right side
    442,025.43x = 259,924,320,718.88
  5. Step 5: Solve for x
    x = 259,924,320,718.88/442,025.43
  6. Step 6: Final answer
    x = 588,030.24

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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.