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Finding the Fourth Proportional to 618,805.60, 927,322.80 and 352,002.40

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Solution

The fourth proportional to 618,805.60, 927,322.80 and 352,002.40 is: 527,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,805.60 : 927,322.80 = 352,002.40 : x
  2. Step 2: Convert to fraction form
    618,805.60/927,322.80 = 352,002.40/x
  3. Step 3: Cross multiply
    618,805.60x = 927,322.80 × 352,002.40
  4. Step 4: Simplify right side
    618,805.60x = 326,419,851,174.72
  5. Step 5: Solve for x
    x = 326,419,851,174.72/618,805.60
  6. Step 6: Final answer
    x = 527,499.83

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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.