Home / 763,446.20-1,145,169.30-447,740.60

Finding the Fourth Proportional to 763,446.20, 1,145,169.30 and 447,740.60

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Solution

The fourth proportional to 763,446.20, 1,145,169.30 and 447,740.60 is: 671,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,446.20 : 1,145,169.30 = 447,740.60 : x
  2. Step 2: Convert to fraction form
    763,446.20/1,145,169.30 = 447,740.60/x
  3. Step 3: Cross multiply
    763,446.20x = 1,145,169.30 × 447,740.60
  4. Step 4: Simplify right side
    763,446.20x = 512,738,789,483.58
  5. Step 5: Solve for x
    x = 512,738,789,483.58/763,446.20
  6. Step 6: Final answer
    x = 671,610.90

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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.