Home / 493,215.12-680,563.89-299,522.10

Finding the Fourth Proportional to 493,215.12, 680,563.89 and 299,522.10

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Solution

The fourth proportional to 493,215.12, 680,563.89 and 299,522.10 is: 413,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,215.12 : 680,563.89 = 299,522.10 : x
  2. Step 2: Convert to fraction form
    493,215.12/680,563.89 = 299,522.10/x
  3. Step 3: Cross multiply
    493,215.12x = 680,563.89 × 299,522.10
  4. Step 4: Simplify right side
    493,215.12x = 203,843,925,516.97
  5. Step 5: Solve for x
    x = 203,843,925,516.97/493,215.12
  6. Step 6: Final answer
    x = 413,296.18

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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.