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Finding the Fourth Proportional to 938,587.68, 1,407,808 and 264,641.76

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Solution

The fourth proportional to 938,587.68, 1,407,808 and 264,641.76 is: 396,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,587.68 : 1,407,808 = 264,641.76 : x
  2. Step 2: Convert to fraction form
    938,587.68/1,407,808 = 264,641.76/x
  3. Step 3: Cross multiply
    938,587.68x = 1,407,808 × 264,641.76
  4. Step 4: Simplify right side
    938,587.68x = 372,564,786,862.08
  5. Step 5: Solve for x
    x = 372,564,786,862.08/938,587.68
  6. Step 6: Final answer
    x = 396,941.91

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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.