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Finding the Fourth Proportional to 521,506.60, 731,159 and 521,506.60

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Solution

The fourth proportional to 521,506.60, 731,159 and 521,506.60 is: 731,159

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,506.60 : 731,159 = 521,506.60 : x
  2. Step 2: Convert to fraction form
    521,506.60/731,159 = 521,506.60/x
  3. Step 3: Cross multiply
    521,506.60x = 731,159 × 521,506.60
  4. Step 4: Simplify right side
    521,506.60x = 381,304,244,149.40
  5. Step 5: Solve for x
    x = 381,304,244,149.40/521,506.60
  6. Step 6: Final answer
    x = 731,159

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.