Home / 746,625.60-1,121,104.80-431,697.60

Finding the Fourth Proportional to 746,625.60, 1,121,104.80 and 431,697.60

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Solution

The fourth proportional to 746,625.60, 1,121,104.80 and 431,697.60 is: 648,220.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,625.60 : 1,121,104.80 = 431,697.60 : x
  2. Step 2: Convert to fraction form
    746,625.60/1,121,104.80 = 431,697.60/x
  3. Step 3: Cross multiply
    746,625.60x = 1,121,104.80 × 431,697.60
  4. Step 4: Simplify right side
    746,625.60x = 483,978,251,508.48
  5. Step 5: Solve for x
    x = 483,978,251,508.48/746,625.60
  6. Step 6: Final answer
    x = 648,220.81

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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.