Home / 932,378.29-1,398,428.87-258,389.30

Finding the Fourth Proportional to 932,378.29, 1,398,428.87 and 258,389.30

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Solution

The fourth proportional to 932,378.29, 1,398,428.87 and 258,389.30 is: 387,545.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,378.29 : 1,398,428.87 = 258,389.30 : x
  2. Step 2: Convert to fraction form
    932,378.29/1,398,428.87 = 258,389.30/x
  3. Step 3: Cross multiply
    932,378.29x = 1,398,428.87 × 258,389.30
  4. Step 4: Simplify right side
    932,378.29x = 361,339,059,023.22
  5. Step 5: Solve for x
    x = 361,339,059,023.22/932,378.29
  6. Step 6: Final answer
    x = 387,545.55

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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.