Home / 675,769.20-932,469.40-403,779.60

Finding the Fourth Proportional to 675,769.20, 932,469.40 and 403,779.60

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Solution

The fourth proportional to 675,769.20, 932,469.40 and 403,779.60 is: 557,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,769.20 : 932,469.40 = 403,779.60 : x
  2. Step 2: Convert to fraction form
    675,769.20/932,469.40 = 403,779.60/x
  3. Step 3: Cross multiply
    675,769.20x = 932,469.40 × 403,779.60
  4. Step 4: Simplify right side
    675,769.20x = 376,512,121,344.24
  5. Step 5: Solve for x
    x = 376,512,121,344.24/675,769.20
  6. Step 6: Final answer
    x = 557,160.82

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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.