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Finding the Fourth Proportional to 545,151.20, 817,894.32 and 279,098.48

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Solution

The fourth proportional to 545,151.20, 817,894.32 and 279,098.48 is: 418,733.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,151.20 : 817,894.32 = 279,098.48 : x
  2. Step 2: Convert to fraction form
    545,151.20/817,894.32 = 279,098.48/x
  3. Step 3: Cross multiply
    545,151.20x = 817,894.32 × 279,098.48
  4. Step 4: Simplify right side
    545,151.20x = 228,273,061,512.63
  5. Step 5: Solve for x
    x = 228,273,061,512.63/545,151.20
  6. Step 6: Final answer
    x = 418,733.48

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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.