Home / 420,401.44-580,166.22-229,427.14

Finding the Fourth Proportional to 420,401.44, 580,166.22 and 229,427.14

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Solution

The fourth proportional to 420,401.44, 580,166.22 and 229,427.14 is: 316,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,401.44 : 580,166.22 = 229,427.14 : x
  2. Step 2: Convert to fraction form
    420,401.44/580,166.22 = 229,427.14/x
  3. Step 3: Cross multiply
    420,401.44x = 580,166.22 × 229,427.14
  4. Step 4: Simplify right side
    420,401.44x = 133,105,876,579.21
  5. Step 5: Solve for x
    x = 133,105,876,579.21/420,401.44
  6. Step 6: Final answer
    x = 316,616.13

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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.