Home / 741,589.76-1,023,317.28-455,121.92

Finding the Fourth Proportional to 741,589.76, 1,023,317.28 and 455,121.92

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Solution

The fourth proportional to 741,589.76, 1,023,317.28 and 455,121.92 is: 628,021.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,589.76 : 1,023,317.28 = 455,121.92 : x
  2. Step 2: Convert to fraction form
    741,589.76/1,023,317.28 = 455,121.92/x
  3. Step 3: Cross multiply
    741,589.76x = 1,023,317.28 × 455,121.92
  4. Step 4: Simplify right side
    741,589.76x = 465,734,125,242.78
  5. Step 5: Solve for x
    x = 465,734,125,242.78/741,589.76
  6. Step 6: Final answer
    x = 628,021.25

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Double scale
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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.