Home / 420,512.04-580,283.46-229,521.24

Finding the Fourth Proportional to 420,512.04, 580,283.46 and 229,521.24

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Solution

The fourth proportional to 420,512.04, 580,283.46 and 229,521.24 is: 316,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,512.04 : 580,283.46 = 229,521.24 : x
  2. Step 2: Convert to fraction form
    420,512.04/580,283.46 = 229,521.24/x
  3. Step 3: Cross multiply
    420,512.04x = 580,283.46 × 229,521.24
  4. Step 4: Simplify right side
    420,512.04x = 133,187,379,290.69
  5. Step 5: Solve for x
    x = 133,187,379,290.69/420,512.04
  6. Step 6: Final answer
    x = 316,726.67

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1.5x scale

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.