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Finding the Fourth Proportional to 418,502.56, 577,526.68 and 227,520.76

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Solution

The fourth proportional to 418,502.56, 577,526.68 and 227,520.76 is: 313,974.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,502.56 : 577,526.68 = 227,520.76 : x
  2. Step 2: Convert to fraction form
    418,502.56/577,526.68 = 227,520.76/x
  3. Step 3: Cross multiply
    418,502.56x = 577,526.68 × 227,520.76
  4. Step 4: Simplify right side
    418,502.56x = 131,399,309,153.88
  5. Step 5: Solve for x
    x = 131,399,309,153.88/418,502.56
  6. Step 6: Final answer
    x = 313,974.92

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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.