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Finding the Fourth Proportional to 659,432.44, 910,027.10 and 387,536.40

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Solution

The fourth proportional to 659,432.44, 910,027.10 and 387,536.40 is: 534,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,432.44 : 910,027.10 = 387,536.40 : x
  2. Step 2: Convert to fraction form
    659,432.44/910,027.10 = 387,536.40/x
  3. Step 3: Cross multiply
    659,432.44x = 910,027.10 × 387,536.40
  4. Step 4: Simplify right side
    659,432.44x = 352,668,627,205.28
  5. Step 5: Solve for x
    x = 352,668,627,205.28/659,432.44
  6. Step 6: Final answer
    x = 534,806.30

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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.