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Finding the Fourth Proportional to 707,329.62, 976,114.97 and 385,042.12

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Solution

The fourth proportional to 707,329.62, 976,114.97 and 385,042.12 is: 531,358.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,329.62 : 976,114.97 = 385,042.12 : x
  2. Step 2: Convert to fraction form
    707,329.62/976,114.97 = 385,042.12/x
  3. Step 3: Cross multiply
    707,329.62x = 976,114.97 × 385,042.12
  4. Step 4: Simplify right side
    707,329.62x = 375,845,377,412.54
  5. Step 5: Solve for x
    x = 375,845,377,412.54/707,329.62
  6. Step 6: Final answer
    x = 531,358.18

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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.