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Finding the Fourth Proportional to 545,159.24, 817,906.26 and 279,106.52

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Solution

The fourth proportional to 545,159.24, 817,906.26 and 279,106.52 is: 418,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,159.24 : 817,906.26 = 279,106.52 : x
  2. Step 2: Convert to fraction form
    545,159.24/817,906.26 = 279,106.52/x
  3. Step 3: Cross multiply
    545,159.24x = 817,906.26 × 279,106.52
  4. Step 4: Simplify right side
    545,159.24x = 228,282,969,914.82
  5. Step 5: Solve for x
    x = 228,282,969,914.82/545,159.24
  6. Step 6: Final answer
    x = 418,745.48

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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.