Home / 819,695.64-1,131,177.78-457,119.91

Finding the Fourth Proportional to 819,695.64, 1,131,177.78 and 457,119.91

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Solution

The fourth proportional to 819,695.64, 1,131,177.78 and 457,119.91 is: 630,824.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,695.64 : 1,131,177.78 = 457,119.91 : x
  2. Step 2: Convert to fraction form
    819,695.64/1,131,177.78 = 457,119.91/x
  3. Step 3: Cross multiply
    819,695.64x = 1,131,177.78 × 457,119.91
  4. Step 4: Simplify right side
    819,695.64x = 517,083,884,987.60
  5. Step 5: Solve for x
    x = 517,083,884,987.60/819,695.64
  6. Step 6: Final answer
    x = 630,824.25

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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.