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Finding the Fourth Proportional to 545,473.23, 816,700.82 and 278,659.23

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Solution

The fourth proportional to 545,473.23, 816,700.82 and 278,659.23 is: 417,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,473.23 : 816,700.82 = 278,659.23 : x
  2. Step 2: Convert to fraction form
    545,473.23/816,700.82 = 278,659.23/x
  3. Step 3: Cross multiply
    545,473.23x = 816,700.82 × 278,659.23
  4. Step 4: Simplify right side
    545,473.23x = 227,581,220,248.27
  5. Step 5: Solve for x
    x = 227,581,220,248.27/545,473.23
  6. Step 6: Final answer
    x = 417,217.95

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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.