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Finding the Fourth Proportional to 652,065.60, 899,540.68 and 434,375.48

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Solution

The fourth proportional to 652,065.60, 899,540.68 and 434,375.48 is: 599,231.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,065.60 : 899,540.68 = 434,375.48 : x
  2. Step 2: Convert to fraction form
    652,065.60/899,540.68 = 434,375.48/x
  3. Step 3: Cross multiply
    652,065.60x = 899,540.68 × 434,375.48
  4. Step 4: Simplify right side
    652,065.60x = 390,738,414,654.53
  5. Step 5: Solve for x
    x = 390,738,414,654.53/652,065.60
  6. Step 6: Final answer
    x = 599,231.76

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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.