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Finding the Fourth Proportional to 418,678.44, 577,770.76 and 227,687.76

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Solution

The fourth proportional to 418,678.44, 577,770.76 and 227,687.76 is: 314,206.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,678.44 : 577,770.76 = 227,687.76 : x
  2. Step 2: Convert to fraction form
    418,678.44/577,770.76 = 227,687.76/x
  3. Step 3: Cross multiply
    418,678.44x = 577,770.76 × 227,687.76
  4. Step 4: Simplify right side
    418,678.44x = 131,551,330,137.90
  5. Step 5: Solve for x
    x = 131,551,330,137.90/418,678.44
  6. Step 6: Final answer
    x = 314,206.12

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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.