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Finding the Fourth Proportional to 543,144.20, 814,862.10 and 484,386.80

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Solution

The fourth proportional to 543,144.20, 814,862.10 and 484,386.80 is: 726,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,144.20 : 814,862.10 = 484,386.80 : x
  2. Step 2: Convert to fraction form
    543,144.20/814,862.10 = 484,386.80/x
  3. Step 3: Cross multiply
    543,144.20x = 814,862.10 × 484,386.80
  4. Step 4: Simplify right side
    543,144.20x = 394,708,445,060.28
  5. Step 5: Solve for x
    x = 394,708,445,060.28/543,144.20
  6. Step 6: Final answer
    x = 726,710.23

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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.