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Finding the Fourth Proportional to 576,440.15, 864,691.69 and 239,514.87

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Solution

The fourth proportional to 576,440.15, 864,691.69 and 239,514.87 is: 359,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,440.15 : 864,691.69 = 239,514.87 : x
  2. Step 2: Convert to fraction form
    576,440.15/864,691.69 = 239,514.87/x
  3. Step 3: Cross multiply
    576,440.15x = 864,691.69 × 239,514.87
  4. Step 4: Simplify right side
    576,440.15x = 207,106,517,720.43
  5. Step 5: Solve for x
    x = 207,106,517,720.43/576,440.15
  6. Step 6: Final answer
    x = 359,285.38

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1.5x scale

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.