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Finding the Fourth Proportional to 484,853.97, 726,781.93 and 215,109.14

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Solution

The fourth proportional to 484,853.97, 726,781.93 and 215,109.14 is: 322,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,853.97 : 726,781.93 = 215,109.14 : x
  2. Step 2: Convert to fraction form
    484,853.97/726,781.93 = 215,109.14/x
  3. Step 3: Cross multiply
    484,853.97x = 726,781.93 × 215,109.14
  4. Step 4: Simplify right side
    484,853.97x = 156,337,435,929.84
  5. Step 5: Solve for x
    x = 156,337,435,929.84/484,853.97
  6. Step 6: Final answer
    x = 322,442.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.