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Finding the Fourth Proportional to 543,133.80, 813,825.90 and 453,904.20

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Solution

The fourth proportional to 543,133.80, 813,825.90 and 453,904.20 is: 680,125.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,133.80 : 813,825.90 = 453,904.20 : x
  2. Step 2: Convert to fraction form
    543,133.80/813,825.90 = 453,904.20/x
  3. Step 3: Cross multiply
    543,133.80x = 813,825.90 × 453,904.20
  4. Step 4: Simplify right side
    543,133.80x = 369,398,994,078.78
  5. Step 5: Solve for x
    x = 369,398,994,078.78/543,133.80
  6. Step 6: Final answer
    x = 680,125.22

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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.