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Finding the Fourth Proportional to 707,329.73, 976,115.15 and 385,042.23

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Solution

The fourth proportional to 707,329.73, 976,115.15 and 385,042.23 is: 531,358.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,329.73 : 976,115.15 = 385,042.23 : x
  2. Step 2: Convert to fraction form
    707,329.73/976,115.15 = 385,042.23/x
  3. Step 3: Cross multiply
    707,329.73x = 976,115.15 × 385,042.23
  4. Step 4: Simplify right side
    707,329.73x = 375,845,552,167.57
  5. Step 5: Solve for x
    x = 375,845,552,167.57/707,329.73
  6. Step 6: Final answer
    x = 531,358.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.