Home / 747,612.80-1,121,678.40-327,190.40

Finding the Fourth Proportional to 747,612.80, 1,121,678.40 and 327,190.40

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Solution

The fourth proportional to 747,612.80, 1,121,678.40 and 327,190.40 is: 490,899.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,612.80 : 1,121,678.40 = 327,190.40 : x
  2. Step 2: Convert to fraction form
    747,612.80/1,121,678.40 = 327,190.40/x
  3. Step 3: Cross multiply
    747,612.80x = 1,121,678.40 × 327,190.40
  4. Step 4: Simplify right side
    747,612.80x = 367,002,404,367.36
  5. Step 5: Solve for x
    x = 367,002,404,367.36/747,612.80
  6. Step 6: Final answer
    x = 490,899.04

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Double scale
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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.