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Finding the Fourth Proportional to 527,720.40, 791,580.60 and 291,524.40

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Solution

The fourth proportional to 527,720.40, 791,580.60 and 291,524.40 is: 437,286.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,720.40 : 791,580.60 = 291,524.40 : x
  2. Step 2: Convert to fraction form
    527,720.40/791,580.60 = 291,524.40/x
  3. Step 3: Cross multiply
    527,720.40x = 791,580.60 × 291,524.40
  4. Step 4: Simplify right side
    527,720.40x = 230,765,059,466.64
  5. Step 5: Solve for x
    x = 230,765,059,466.64/527,720.40
  6. Step 6: Final answer
    x = 437,286.60

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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.