Home / 420,924.78-580,868.91-229,933.26

Finding the Fourth Proportional to 420,924.78, 580,868.91 and 229,933.26

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Solution

The fourth proportional to 420,924.78, 580,868.91 and 229,933.26 is: 317,303.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,924.78 : 580,868.91 = 229,933.26 : x
  2. Step 2: Convert to fraction form
    420,924.78/580,868.91 = 229,933.26/x
  3. Step 3: Cross multiply
    420,924.78x = 580,868.91 × 229,933.26
  4. Step 4: Simplify right side
    420,924.78x = 133,561,082,108.95
  5. Step 5: Solve for x
    x = 133,561,082,108.95/420,924.78
  6. Step 6: Final answer
    x = 317,303.92

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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.