Home / 485,342.06-669,791.40-270,480.20

Finding the Fourth Proportional to 485,342.06, 669,791.40 and 270,480.20

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Solution

The fourth proportional to 485,342.06, 669,791.40 and 270,480.20 is: 373,273.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,342.06 : 669,791.40 = 270,480.20 : x
  2. Step 2: Convert to fraction form
    485,342.06/669,791.40 = 270,480.20/x
  3. Step 3: Cross multiply
    485,342.06x = 669,791.40 × 270,480.20
  4. Step 4: Simplify right side
    485,342.06x = 181,165,311,830.28
  5. Step 5: Solve for x
    x = 181,165,311,830.28/485,342.06
  6. Step 6: Final answer
    x = 373,273.46

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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.