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Finding the Fourth Proportional to 408,757.85, 564,089.58 and 227,477.42

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Solution

The fourth proportional to 408,757.85, 564,089.58 and 227,477.42 is: 313,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,757.85 : 564,089.58 = 227,477.42 : x
  2. Step 2: Convert to fraction form
    408,757.85/564,089.58 = 227,477.42/x
  3. Step 3: Cross multiply
    408,757.85x = 564,089.58 × 227,477.42
  4. Step 4: Simplify right side
    408,757.85x = 128,317,639,486.84
  5. Step 5: Solve for x
    x = 128,317,639,486.84/408,757.85
  6. Step 6: Final answer
    x = 313,920.92

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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.