Home / 485,417.20-727,931.40-169,711.60

Finding the Fourth Proportional to 485,417.20, 727,931.40 and 169,711.60

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Solution

The fourth proportional to 485,417.20, 727,931.40 and 169,711.60 is: 254,499.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,417.20 : 727,931.40 = 169,711.60 : x
  2. Step 2: Convert to fraction form
    485,417.20/727,931.40 = 169,711.60/x
  3. Step 3: Cross multiply
    485,417.20x = 727,931.40 × 169,711.60
  4. Step 4: Simplify right side
    485,417.20x = 123,538,402,584.24
  5. Step 5: Solve for x
    x = 123,538,402,584.24/485,417.20
  6. Step 6: Final answer
    x = 254,499.43

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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.