Home / 727,040.25-1,002,662.34-455,132.90

Finding the Fourth Proportional to 727,040.25, 1,002,662.34 and 455,132.90

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Solution

The fourth proportional to 727,040.25, 1,002,662.34 and 455,132.90 is: 627,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,040.25 : 1,002,662.34 = 455,132.90 : x
  2. Step 2: Convert to fraction form
    727,040.25/1,002,662.34 = 455,132.90/x
  3. Step 3: Cross multiply
    727,040.25x = 1,002,662.34 × 455,132.90
  4. Step 4: Simplify right side
    727,040.25x = 456,344,618,524.99
  5. Step 5: Solve for x
    x = 456,344,618,524.99/727,040.25
  6. Step 6: Final answer
    x = 627,674.49

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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.