Home / 1,432,240.72-1,976,452.73-787,660.90

Finding the Fourth Proportional to 1,432,240.72, 1,976,452.73 and 787,660.90

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Solution

The fourth proportional to 1,432,240.72, 1,976,452.73 and 787,660.90 is: 1,086,950.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,240.72 : 1,976,452.73 = 787,660.90 : x
  2. Step 2: Convert to fraction form
    1,432,240.72/1,976,452.73 = 787,660.90/x
  3. Step 3: Cross multiply
    1,432,240.72x = 1,976,452.73 × 787,660.90
  4. Step 4: Simplify right side
    1,432,240.72x = 1,556,774,532,180.95
  5. Step 5: Solve for x
    x = 1,556,774,532,180.95/1,432,240.72
  6. Step 6: Final answer
    x = 1,086,950.34

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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.