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Finding the Fourth Proportional to 418,635.60, 587,139.60 and 418,635.60

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Solution

The fourth proportional to 418,635.60, 587,139.60 and 418,635.60 is: 587,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,635.60 : 587,139.60 = 418,635.60 : x
  2. Step 2: Convert to fraction form
    418,635.60/587,139.60 = 418,635.60/x
  3. Step 3: Cross multiply
    418,635.60x = 587,139.60 × 418,635.60
  4. Step 4: Simplify right side
    418,635.60x = 245,797,538,729.76
  5. Step 5: Solve for x
    x = 245,797,538,729.76/418,635.60
  6. Step 6: Final answer
    x = 587,139.60

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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.