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Finding the Fourth Proportional to 478,542.80, 717,641.40 and 241,806.80

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Solution

The fourth proportional to 478,542.80, 717,641.40 and 241,806.80 is: 362,622.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,542.80 : 717,641.40 = 241,806.80 : x
  2. Step 2: Convert to fraction form
    478,542.80/717,641.40 = 241,806.80/x
  3. Step 3: Cross multiply
    478,542.80x = 717,641.40 × 241,806.80
  4. Step 4: Simplify right side
    478,542.80x = 173,530,570,481.52
  5. Step 5: Solve for x
    x = 173,530,570,481.52/478,542.80
  6. Step 6: Final answer
    x = 362,622.88

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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.