Home / 677,863.20-935,062.56-422,771.52

Finding the Fourth Proportional to 677,863.20, 935,062.56 and 422,771.52

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Solution

The fourth proportional to 677,863.20, 935,062.56 and 422,771.52 is: 583,182.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,863.20 : 935,062.56 = 422,771.52 : x
  2. Step 2: Convert to fraction form
    677,863.20/935,062.56 = 422,771.52/x
  3. Step 3: Cross multiply
    677,863.20x = 935,062.56 × 422,771.52
  4. Step 4: Simplify right side
    677,863.20x = 395,317,819,786.29
  5. Step 5: Solve for x
    x = 395,317,819,786.29/677,863.20
  6. Step 6: Final answer
    x = 583,182.30

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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.