Home / 1,432,243.22-1,976,456.17-787,663.40

Finding the Fourth Proportional to 1,432,243.22, 1,976,456.17 and 787,663.40

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Solution

The fourth proportional to 1,432,243.22, 1,976,456.17 and 787,663.40 is: 1,086,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,243.22 : 1,976,456.17 = 787,663.40 : x
  2. Step 2: Convert to fraction form
    1,432,243.22/1,976,456.17 = 787,663.40/x
  3. Step 3: Cross multiply
    1,432,243.22x = 1,976,456.17 × 787,663.40
  4. Step 4: Simplify right side
    1,432,243.22x = 1,556,782,186,813.18
  5. Step 5: Solve for x
    x = 1,556,782,186,813.18/1,432,243.22
  6. Step 6: Final answer
    x = 1,086,953.78

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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.