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Finding the Fourth Proportional to 432,959.40, 649,439.10 and 415,244.70

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Solution

The fourth proportional to 432,959.40, 649,439.10 and 415,244.70 is: 622,867.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,959.40 : 649,439.10 = 415,244.70 : x
  2. Step 2: Convert to fraction form
    432,959.40/649,439.10 = 415,244.70/x
  3. Step 3: Cross multiply
    432,959.40x = 649,439.10 × 415,244.70
  4. Step 4: Simplify right side
    432,959.40x = 269,676,144,247.77
  5. Step 5: Solve for x
    x = 269,676,144,247.77/432,959.40
  6. Step 6: Final answer
    x = 622,867.05

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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.