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Finding the Fourth Proportional to 545,572.38, 817,833.68 and 279,458.22

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Solution

The fourth proportional to 545,572.38, 817,833.68 and 279,458.22 is: 418,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,572.38 : 817,833.68 = 279,458.22 : x
  2. Step 2: Convert to fraction form
    545,572.38/817,833.68 = 279,458.22/x
  3. Step 3: Cross multiply
    545,572.38x = 817,833.68 × 279,458.22
  4. Step 4: Simplify right side
    545,572.38x = 228,550,344,468.85
  5. Step 5: Solve for x
    x = 228,550,344,468.85/545,572.38
  6. Step 6: Final answer
    x = 418,918.47

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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.