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Finding the Fourth Proportional to 545,101.20, 819,034.20 and 484,275.60

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Solution

The fourth proportional to 545,101.20, 819,034.20 and 484,275.60 is: 727,641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,101.20 : 819,034.20 = 484,275.60 : x
  2. Step 2: Convert to fraction form
    545,101.20/819,034.20 = 484,275.60/x
  3. Step 3: Cross multiply
    545,101.20x = 819,034.20 × 484,275.60
  4. Step 4: Simplify right side
    545,101.20x = 396,638,278,625.52
  5. Step 5: Solve for x
    x = 396,638,278,625.52/545,101.20
  6. Step 6: Final answer
    x = 727,641.54

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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.