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Finding the Third Proportional to 611,479.13 and 915,760.69

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Solution

The third proportional to 611,479.13 and 915,760.69 is: 1,371,457.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,479.13 : 915,760.69 = 915,760.69 : x
  2. Step 2: Convert to fraction form
    611,479.13/915,760.69 = 915,760.69/x
  3. Step 3: Cross multiply
    611,479.13x = 915,760.69 × 915,760.69
  4. Step 4: Simplify right side
    611,479.13x = 838,617,636,770.47
  5. Step 5: Solve for x
    x = 838,617,636,770.47/611,479.13
  6. Step 6: Final answer
    x = 1,371,457.51

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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.