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Finding the Fourth Proportional to 558,164.32, 770,243.33 and 316,463.15

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Solution

The fourth proportional to 558,164.32, 770,243.33 and 316,463.15 is: 436,705.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,164.32 : 770,243.33 = 316,463.15 : x
  2. Step 2: Convert to fraction form
    558,164.32/770,243.33 = 316,463.15/x
  3. Step 3: Cross multiply
    558,164.32x = 770,243.33 × 316,463.15
  4. Step 4: Simplify right side
    558,164.32x = 243,753,631,414.95
  5. Step 5: Solve for x
    x = 243,753,631,414.95/558,164.32
  6. Step 6: Final answer
    x = 436,705.87

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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.