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Finding the Fourth Proportional to 463,696.57, 639,639.75 and 270,081.46

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Solution

The fourth proportional to 463,696.57, 639,639.75 and 270,081.46 is: 372,560.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,696.57 : 639,639.75 = 270,081.46 : x
  2. Step 2: Convert to fraction form
    463,696.57/639,639.75 = 270,081.46/x
  3. Step 3: Cross multiply
    463,696.57x = 639,639.75 × 270,081.46
  4. Step 4: Simplify right side
    463,696.57x = 172,754,837,554.04
  5. Step 5: Solve for x
    x = 172,754,837,554.04/463,696.57
  6. Step 6: Final answer
    x = 372,560.09

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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.