Home / 500,974.13-691,270.50-304,640.46

Finding the Fourth Proportional to 500,974.13, 691,270.50 and 304,640.46

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Solution

The fourth proportional to 500,974.13, 691,270.50 and 304,640.46 is: 420,358.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,974.13 : 691,270.50 = 304,640.46 : x
  2. Step 2: Convert to fraction form
    500,974.13/691,270.50 = 304,640.46/x
  3. Step 3: Cross multiply
    500,974.13x = 691,270.50 × 304,640.46
  4. Step 4: Simplify right side
    500,974.13x = 210,588,964,246.83
  5. Step 5: Solve for x
    x = 210,588,964,246.83/500,974.13
  6. Step 6: Final answer
    x = 420,358.96

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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.