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Finding the Fourth Proportional to 532,785.20, 735,258.02 and 318,049.88

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Solution

The fourth proportional to 532,785.20, 735,258.02 and 318,049.88 is: 438,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,785.20 : 735,258.02 = 318,049.88 : x
  2. Step 2: Convert to fraction form
    532,785.20/735,258.02 = 318,049.88/x
  3. Step 3: Cross multiply
    532,785.20x = 735,258.02 × 318,049.88
  4. Step 4: Simplify right side
    532,785.20x = 233,848,719,763.50
  5. Step 5: Solve for x
    x = 233,848,719,763.50/532,785.20
  6. Step 6: Final answer
    x = 438,917.45

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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.