Home / 812,879.01-1,219,318.65-339,306.03

Finding the Fourth Proportional to 812,879.01, 1,219,318.65 and 339,306.03

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Solution

The fourth proportional to 812,879.01, 1,219,318.65 and 339,306.03 is: 508,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,879.01 : 1,219,318.65 = 339,306.03 : x
  2. Step 2: Convert to fraction form
    812,879.01/1,219,318.65 = 339,306.03/x
  3. Step 3: Cross multiply
    812,879.01x = 1,219,318.65 × 339,306.03
  4. Step 4: Simplify right side
    812,879.01x = 413,722,170,436.46
  5. Step 5: Solve for x
    x = 413,722,170,436.46/812,879.01
  6. Step 6: Final answer
    x = 508,959.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.