Home / 485,723.20-728,050.20-170,017.60

Finding the Fourth Proportional to 485,723.20, 728,050.20 and 170,017.60

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Solution

The fourth proportional to 485,723.20, 728,050.20 and 170,017.60 is: 254,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,723.20 : 728,050.20 = 170,017.60 : x
  2. Step 2: Convert to fraction form
    485,723.20/728,050.20 = 170,017.60/x
  3. Step 3: Cross multiply
    485,723.20x = 728,050.20 × 170,017.60
  4. Step 4: Simplify right side
    485,723.20x = 123,781,347,683.52
  5. Step 5: Solve for x
    x = 123,781,347,683.52/485,723.20
  6. Step 6: Final answer
    x = 254,839.27

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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.