Home / 747,645.80-1,121,727.90-327,223.40

Finding the Fourth Proportional to 747,645.80, 1,121,727.90 and 327,223.40

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Solution

The fourth proportional to 747,645.80, 1,121,727.90 and 327,223.40 is: 490,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,645.80 : 1,121,727.90 = 327,223.40 : x
  2. Step 2: Convert to fraction form
    747,645.80/1,121,727.90 = 327,223.40/x
  3. Step 3: Cross multiply
    747,645.80x = 1,121,727.90 × 327,223.40
  4. Step 4: Simplify right side
    747,645.80x = 367,055,617,312.86
  5. Step 5: Solve for x
    x = 367,055,617,312.86/747,645.80
  6. Step 6: Final answer
    x = 490,948.54

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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.