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Finding the Fourth Proportional to 475,709.80, 656,479.20 and 260,853.52

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Solution

The fourth proportional to 475,709.80, 656,479.20 and 260,853.52 is: 359,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,709.80 : 656,479.20 = 260,853.52 : x
  2. Step 2: Convert to fraction form
    475,709.80/656,479.20 = 260,853.52/x
  3. Step 3: Cross multiply
    475,709.80x = 656,479.20 × 260,853.52
  4. Step 4: Simplify right side
    475,709.80x = 171,244,910,126.78
  5. Step 5: Solve for x
    x = 171,244,910,126.78/475,709.80
  6. Step 6: Final answer
    x = 359,977.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.