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Finding the Fourth Proportional to 485,867.97, 728,801.96 and 249,059.61

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Solution

The fourth proportional to 485,867.97, 728,801.96 and 249,059.61 is: 373,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,867.97 : 728,801.96 = 249,059.61 : x
  2. Step 2: Convert to fraction form
    485,867.97/728,801.96 = 249,059.61/x
  3. Step 3: Cross multiply
    485,867.97x = 728,801.96 × 249,059.61
  4. Step 4: Simplify right side
    485,867.97x = 181,515,130,679.54
  5. Step 5: Solve for x
    x = 181,515,130,679.54/485,867.97
  6. Step 6: Final answer
    x = 373,589.42

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Similar ratio
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1.5x scale

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.