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Finding the Fourth Proportional to 609,861.66, 915,630.48 and 310,543.44

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Solution

The fourth proportional to 609,861.66, 915,630.48 and 310,543.44 is: 466,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,861.66 : 915,630.48 = 310,543.44 : x
  2. Step 2: Convert to fraction form
    609,861.66/915,630.48 = 310,543.44/x
  3. Step 3: Cross multiply
    609,861.66x = 915,630.48 × 310,543.44
  4. Step 4: Simplify right side
    609,861.66x = 284,343,039,028.05
  5. Step 5: Solve for x
    x = 284,343,039,028.05/609,861.66
  6. Step 6: Final answer
    x = 466,241.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.