Home / 642,519.40-963,781.26-162,747.04

Finding the Fourth Proportional to 642,519.40, 963,781.26 and 162,747.04

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Solution

The fourth proportional to 642,519.40, 963,781.26 and 162,747.04 is: 244,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,519.40 : 963,781.26 = 162,747.04 : x
  2. Step 2: Convert to fraction form
    642,519.40/963,781.26 = 162,747.04/x
  3. Step 3: Cross multiply
    642,519.40x = 963,781.26 × 162,747.04
  4. Step 4: Simplify right side
    642,519.40x = 156,852,547,272.47
  5. Step 5: Solve for x
    x = 156,852,547,272.47/642,519.40
  6. Step 6: Final answer
    x = 244,121.11

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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.