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Finding the Fourth Proportional to 707,948.13, 976,963.37 and 385,658.15

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Solution

The fourth proportional to 707,948.13, 976,963.37 and 385,658.15 is: 532,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,948.13 : 976,963.37 = 385,658.15 : x
  2. Step 2: Convert to fraction form
    707,948.13/976,963.37 = 385,658.15/x
  3. Step 3: Cross multiply
    707,948.13x = 976,963.37 × 385,658.15
  4. Step 4: Simplify right side
    707,948.13x = 376,773,879,078.86
  5. Step 5: Solve for x
    x = 376,773,879,078.86/707,948.13
  6. Step 6: Final answer
    x = 532,205.49

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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.