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Finding the Fourth Proportional to 521,444.60, 731,072.20 and 521,444.60

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Solution

The fourth proportional to 521,444.60, 731,072.20 and 521,444.60 is: 731,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,444.60 : 731,072.20 = 521,444.60 : x
  2. Step 2: Convert to fraction form
    521,444.60/731,072.20 = 521,444.60/x
  3. Step 3: Cross multiply
    521,444.60x = 731,072.20 × 521,444.60
  4. Step 4: Simplify right side
    521,444.60x = 381,213,650,900.12
  5. Step 5: Solve for x
    x = 381,213,650,900.12/521,444.60
  6. Step 6: Final answer
    x = 731,072.20

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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.