Home / 420,907.30-580,864.53-229,923.82

Finding the Fourth Proportional to 420,907.30, 580,864.53 and 229,923.82

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Solution

The fourth proportional to 420,907.30, 580,864.53 and 229,923.82 is: 317,301.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,907.30 : 580,864.53 = 229,923.82 : x
  2. Step 2: Convert to fraction form
    420,907.30/580,864.53 = 229,923.82/x
  3. Step 3: Cross multiply
    420,907.30x = 580,864.53 × 229,923.82
  4. Step 4: Simplify right side
    420,907.30x = 133,554,591,640.11
  5. Step 5: Solve for x
    x = 133,554,591,640.11/420,907.30
  6. Step 6: Final answer
    x = 317,301.68

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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.