Home / 747,226.20-1,119,608.10-431,131.80

Finding the Fourth Proportional to 747,226.20, 1,119,608.10 and 431,131.80

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Solution

The fourth proportional to 747,226.20, 1,119,608.10 and 431,131.80 is: 645,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,226.20 : 1,119,608.10 = 431,131.80 : x
  2. Step 2: Convert to fraction form
    747,226.20/1,119,608.10 = 431,131.80/x
  3. Step 3: Cross multiply
    747,226.20x = 1,119,608.10 × 431,131.80
  4. Step 4: Simplify right side
    747,226.20x = 482,698,655,447.58
  5. Step 5: Solve for x
    x = 482,698,655,447.58/747,226.20
  6. Step 6: Final answer
    x = 645,987.33

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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.