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Finding the Fourth Proportional to 418,894.66, 578,077.05 and 227,909.35

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Solution

The fourth proportional to 418,894.66, 578,077.05 and 227,909.35 is: 314,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,894.66 : 578,077.05 = 227,909.35 : x
  2. Step 2: Convert to fraction form
    418,894.66/578,077.05 = 227,909.35/x
  3. Step 3: Cross multiply
    418,894.66x = 578,077.05 × 227,909.35
  4. Step 4: Simplify right side
    418,894.66x = 131,749,164,715.42
  5. Step 5: Solve for x
    x = 131,749,164,715.42/418,894.66
  6. Step 6: Final answer
    x = 314,516.22

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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.