Home / 870,892.38-1,306,421.19-338,454.54

Finding the Fourth Proportional to 870,892.38, 1,306,421.19 and 338,454.54

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Solution

The fourth proportional to 870,892.38, 1,306,421.19 and 338,454.54 is: 507,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,892.38 : 1,306,421.19 = 338,454.54 : x
  2. Step 2: Convert to fraction form
    870,892.38/1,306,421.19 = 338,454.54/x
  3. Step 3: Cross multiply
    870,892.38x = 1,306,421.19 × 338,454.54
  4. Step 4: Simplify right side
    870,892.38x = 442,164,182,907.70
  5. Step 5: Solve for x
    x = 442,164,182,907.70/870,892.38
  6. Step 6: Final answer
    x = 507,713.92

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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.