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Finding the Fourth Proportional to 494,420.10, 741,630.15 and 485,672.10

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Solution

The fourth proportional to 494,420.10, 741,630.15 and 485,672.10 is: 728,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,420.10 : 741,630.15 = 485,672.10 : x
  2. Step 2: Convert to fraction form
    494,420.10/741,630.15 = 485,672.10/x
  3. Step 3: Cross multiply
    494,420.10x = 741,630.15 × 485,672.10
  4. Step 4: Simplify right side
    494,420.10x = 360,189,072,373.82
  5. Step 5: Solve for x
    x = 360,189,072,373.82/494,420.10
  6. Step 6: Final answer
    x = 728,508.15

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Similar ratio
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1.5x scale

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.