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Finding the Fourth Proportional to 545,144.80, 817,717.20 and 541,645.60

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Solution

The fourth proportional to 545,144.80, 817,717.20 and 541,645.60 is: 812,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,144.80 : 817,717.20 = 541,645.60 : x
  2. Step 2: Convert to fraction form
    545,144.80/817,717.20 = 541,645.60/x
  3. Step 3: Cross multiply
    545,144.80x = 817,717.20 × 541,645.60
  4. Step 4: Simplify right side
    545,144.80x = 442,912,923,424.32
  5. Step 5: Solve for x
    x = 442,912,923,424.32/545,144.80
  6. Step 6: Final answer
    x = 812,468.40

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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.