Home / 485,428.20-727,947.90-169,722.60

Finding the Fourth Proportional to 485,428.20, 727,947.90 and 169,722.60

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Solution

The fourth proportional to 485,428.20, 727,947.90 and 169,722.60 is: 254,515.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,428.20 : 727,947.90 = 169,722.60 : x
  2. Step 2: Convert to fraction form
    485,428.20/727,947.90 = 169,722.60/x
  3. Step 3: Cross multiply
    485,428.20x = 727,947.90 × 169,722.60
  4. Step 4: Simplify right side
    485,428.20x = 123,549,210,252.54
  5. Step 5: Solve for x
    x = 123,549,210,252.54/485,428.20
  6. Step 6: Final answer
    x = 254,515.93

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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.