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Finding the Fourth Proportional to 672,705.09, 932,340.24 and 660,107.97

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Solution

The fourth proportional to 672,705.09, 932,340.24 and 660,107.97 is: 914,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,705.09 : 932,340.24 = 660,107.97 : x
  2. Step 2: Convert to fraction form
    672,705.09/932,340.24 = 660,107.97/x
  3. Step 3: Cross multiply
    672,705.09x = 932,340.24 × 660,107.97
  4. Step 4: Simplify right side
    672,705.09x = 615,445,223,175.71
  5. Step 5: Solve for x
    x = 615,445,223,175.71/672,705.09
  6. Step 6: Final answer
    x = 914,881.18

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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.