Home / 571,721.78-857,706.52-172,329.14

Finding the Fourth Proportional to 571,721.78, 857,706.52 and 172,329.14

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Solution

The fourth proportional to 571,721.78, 857,706.52 and 172,329.14 is: 258,531.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,721.78 : 857,706.52 = 172,329.14 : x
  2. Step 2: Convert to fraction form
    571,721.78/857,706.52 = 172,329.14/x
  3. Step 3: Cross multiply
    571,721.78x = 857,706.52 × 172,329.14
  4. Step 4: Simplify right side
    571,721.78x = 147,807,826,963.99
  5. Step 5: Solve for x
    x = 147,807,826,963.99/571,721.78
  6. Step 6: Final answer
    x = 258,531.04

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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.