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Finding the Fourth Proportional to 659,909.43, 910,675.04 and 358,103.43

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Solution

The fourth proportional to 659,909.43, 910,675.04 and 358,103.43 is: 494,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,909.43 : 910,675.04 = 358,103.43 : x
  2. Step 2: Convert to fraction form
    659,909.43/910,675.04 = 358,103.43/x
  3. Step 3: Cross multiply
    659,909.43x = 910,675.04 × 358,103.43
  4. Step 4: Simplify right side
    659,909.43x = 326,115,853,648.87
  5. Step 5: Solve for x
    x = 326,115,853,648.87/659,909.43
  6. Step 6: Final answer
    x = 494,182.75

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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.