Home / 485,400.38-669,875.45-270,541.98

Finding the Fourth Proportional to 485,400.38, 669,875.45 and 270,541.98

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Solution

The fourth proportional to 485,400.38, 669,875.45 and 270,541.98 is: 373,360.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,400.38 : 669,875.45 = 270,541.98 : x
  2. Step 2: Convert to fraction form
    485,400.38/669,875.45 = 270,541.98/x
  3. Step 3: Cross multiply
    485,400.38x = 669,875.45 × 270,541.98
  4. Step 4: Simplify right side
    485,400.38x = 181,229,429,243.68
  5. Step 5: Solve for x
    x = 181,229,429,243.68/485,400.38
  6. Step 6: Final answer
    x = 373,360.71

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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.