Home / 388,720.10-581,694.44-268,801.43

Finding the Fourth Proportional to 388,720.10, 581,694.44 and 268,801.43

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Solution

The fourth proportional to 388,720.10, 581,694.44 and 268,801.43 is: 402,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,720.10 : 581,694.44 = 268,801.43 : x
  2. Step 2: Convert to fraction form
    388,720.10/581,694.44 = 268,801.43/x
  3. Step 3: Cross multiply
    388,720.10x = 581,694.44 × 268,801.43
  4. Step 4: Simplify right side
    388,720.10x = 156,360,293,042.57
  5. Step 5: Solve for x
    x = 156,360,293,042.57/388,720.10
  6. Step 6: Final answer
    x = 402,243.92

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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.