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Finding the Fourth Proportional to 408,722.70, 564,037.32 and 227,446.32

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Solution

The fourth proportional to 408,722.70, 564,037.32 and 227,446.32 is: 313,875.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,722.70 : 564,037.32 = 227,446.32 : x
  2. Step 2: Convert to fraction form
    408,722.70/564,037.32 = 227,446.32/x
  3. Step 3: Cross multiply
    408,722.70x = 564,037.32 × 227,446.32
  4. Step 4: Simplify right side
    408,722.70x = 128,288,212,776.66
  5. Step 5: Solve for x
    x = 128,288,212,776.66/408,722.70
  6. Step 6: Final answer
    x = 313,875.92

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1.5x scale

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.