Home / 485,407.35-669,865.25-270,561.04

Finding the Fourth Proportional to 485,407.35, 669,865.25 and 270,561.04

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Solution

The fourth proportional to 485,407.35, 669,865.25 and 270,561.04 is: 373,375.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,407.35 : 669,865.25 = 270,561.04 : x
  2. Step 2: Convert to fraction form
    485,407.35/669,865.25 = 270,561.04/x
  3. Step 3: Cross multiply
    485,407.35x = 669,865.25 × 270,561.04
  4. Step 4: Simplify right side
    485,407.35x = 181,239,437,701.60
  5. Step 5: Solve for x
    x = 181,239,437,701.60/485,407.35
  6. Step 6: Final answer
    x = 373,375.96

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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.