Home / 747,655.80-1,121,742.90-327,233.40

Finding the Fourth Proportional to 747,655.80, 1,121,742.90 and 327,233.40

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Solution

The fourth proportional to 747,655.80, 1,121,742.90 and 327,233.40 is: 490,963.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,655.80 : 1,121,742.90 = 327,233.40 : x
  2. Step 2: Convert to fraction form
    747,655.80/1,121,742.90 = 327,233.40/x
  3. Step 3: Cross multiply
    747,655.80x = 1,121,742.90 × 327,233.40
  4. Step 4: Simplify right side
    747,655.80x = 367,071,743,092.86
  5. Step 5: Solve for x
    x = 367,071,743,092.86/747,655.80
  6. Step 6: Final answer
    x = 490,963.55

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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.