Home / 485,470.10-669,934.78-270,605.54

Finding the Fourth Proportional to 485,470.10, 669,934.78 and 270,605.54

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Solution

The fourth proportional to 485,470.10, 669,934.78 and 270,605.54 is: 373,427.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,470.10 : 669,934.78 = 270,605.54 : x
  2. Step 2: Convert to fraction form
    485,470.10/669,934.78 = 270,605.54/x
  3. Step 3: Cross multiply
    485,470.10x = 669,934.78 × 270,605.54
  4. Step 4: Simplify right side
    485,470.10x = 181,288,063,905.00
  5. Step 5: Solve for x
    x = 181,288,063,905.00/485,470.10
  6. Step 6: Final answer
    x = 373,427.87

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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.