Home / 454,068.06-680,052.30-438,321.66

Finding the Fourth Proportional to 454,068.06, 680,052.30 and 438,321.66

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Solution

The fourth proportional to 454,068.06, 680,052.30 and 438,321.66 is: 656,469.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,068.06 : 680,052.30 = 438,321.66 : x
  2. Step 2: Convert to fraction form
    454,068.06/680,052.30 = 438,321.66/x
  3. Step 3: Cross multiply
    454,068.06x = 680,052.30 × 438,321.66
  4. Step 4: Simplify right side
    454,068.06x = 298,081,653,022.82
  5. Step 5: Solve for x
    x = 298,081,653,022.82/454,068.06
  6. Step 6: Final answer
    x = 656,469.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.