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Finding the Fourth Proportional to 888,003.74, 1,225,589.88 and 660,074.60

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Solution

The fourth proportional to 888,003.74, 1,225,589.88 and 660,074.60 is: 911,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,003.74 : 1,225,589.88 = 660,074.60 : x
  2. Step 2: Convert to fraction form
    888,003.74/1,225,589.88 = 660,074.60/x
  3. Step 3: Cross multiply
    888,003.74x = 1,225,589.88 × 660,074.60
  4. Step 4: Simplify right side
    888,003.74x = 808,980,749,805.05
  5. Step 5: Solve for x
    x = 808,980,749,805.05/888,003.74
  6. Step 6: Final answer
    x = 911,010.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.