Home / 432,921.80-649,382.70-291,204.20

Finding the Fourth Proportional to 432,921.80, 649,382.70 and 291,204.20

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Solution

The fourth proportional to 432,921.80, 649,382.70 and 291,204.20 is: 436,806.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,921.80 : 649,382.70 = 291,204.20 : x
  2. Step 2: Convert to fraction form
    432,921.80/649,382.70 = 291,204.20/x
  3. Step 3: Cross multiply
    432,921.80x = 649,382.70 × 291,204.20
  4. Step 4: Simplify right side
    432,921.80x = 189,102,969,647.34
  5. Step 5: Solve for x
    x = 189,102,969,647.34/432,921.80
  6. Step 6: Final answer
    x = 436,806.30

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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.