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Finding the Fourth Proportional to 610,687.20, 915,587.93 and 410,511.09

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Solution

The fourth proportional to 610,687.20, 915,587.93 and 410,511.09 is: 615,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,687.20 : 915,587.93 = 410,511.09 : x
  2. Step 2: Convert to fraction form
    610,687.20/915,587.93 = 410,511.09/x
  3. Step 3: Cross multiply
    610,687.20x = 915,587.93 × 410,511.09
  4. Step 4: Simplify right side
    610,687.20x = 375,859,000,161.42
  5. Step 5: Solve for x
    x = 375,859,000,161.42/610,687.20
  6. Step 6: Final answer
    x = 615,468.93

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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.