Home / 420,296.24-580,006.88-229,309.04

Finding the Fourth Proportional to 420,296.24, 580,006.88 and 229,309.04

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Solution

The fourth proportional to 420,296.24, 580,006.88 and 229,309.04 is: 316,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,296.24 : 580,006.88 = 229,309.04 : x
  2. Step 2: Convert to fraction form
    420,296.24/580,006.88 = 229,309.04/x
  3. Step 3: Cross multiply
    420,296.24x = 580,006.88 × 229,309.04
  4. Step 4: Simplify right side
    420,296.24x = 133,000,820,846.20
  5. Step 5: Solve for x
    x = 133,000,820,846.20/420,296.24
  6. Step 6: Final answer
    x = 316,445.42

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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.