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Finding the Fourth Proportional to 649,809.80, 974,714.70 and 275,832.80

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Solution

The fourth proportional to 649,809.80, 974,714.70 and 275,832.80 is: 413,749.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,809.80 : 974,714.70 = 275,832.80 : x
  2. Step 2: Convert to fraction form
    649,809.80/974,714.70 = 275,832.80/x
  3. Step 3: Cross multiply
    649,809.80x = 974,714.70 × 275,832.80
  4. Step 4: Simplify right side
    649,809.80x = 268,858,284,902.16
  5. Step 5: Solve for x
    x = 268,858,284,902.16/649,809.80
  6. Step 6: Final answer
    x = 413,749.20

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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.