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Finding the Fourth Proportional to 672,706.26, 932,341.92 and 660,109.14

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Solution

The fourth proportional to 672,706.26, 932,341.92 and 660,109.14 is: 914,882.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,706.26 : 932,341.92 = 660,109.14 : x
  2. Step 2: Convert to fraction form
    672,706.26/932,341.92 = 660,109.14/x
  3. Step 3: Cross multiply
    672,706.26x = 932,341.92 × 660,109.14
  4. Step 4: Simplify right side
    672,706.26x = 615,447,422,997.15
  5. Step 5: Solve for x
    x = 615,447,422,997.15/672,706.26
  6. Step 6: Final answer
    x = 914,882.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.