Home / 819,867.22-1,131,418.30-457,314.55

Finding the Fourth Proportional to 819,867.22, 1,131,418.30 and 457,314.55

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Solution

The fourth proportional to 819,867.22, 1,131,418.30 and 457,314.55 is: 631,094.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,867.22 : 1,131,418.30 = 457,314.55 : x
  2. Step 2: Convert to fraction form
    819,867.22/1,131,418.30 = 457,314.55/x
  3. Step 3: Cross multiply
    819,867.22x = 1,131,418.30 × 457,314.55
  4. Step 4: Simplify right side
    819,867.22x = 517,414,050,726.27
  5. Step 5: Solve for x
    x = 517,414,050,726.27/819,867.22
  6. Step 6: Final answer
    x = 631,094.94

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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.