Home / 1,079,085.78-1,489,734.99-649,471.50

Finding the Fourth Proportional to 1,079,085.78, 1,489,734.99 and 649,471.50

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Solution

The fourth proportional to 1,079,085.78, 1,489,734.99 and 649,471.50 is: 896,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,085.78 : 1,489,734.99 = 649,471.50 : x
  2. Step 2: Convert to fraction form
    1,079,085.78/1,489,734.99 = 649,471.50/x
  3. Step 3: Cross multiply
    1,079,085.78x = 1,489,734.99 × 649,471.50
  4. Step 4: Simplify right side
    1,079,085.78x = 967,540,418,557.79
  5. Step 5: Solve for x
    x = 967,540,418,557.79/1,079,085.78
  6. Step 6: Final answer
    x = 896,629.76

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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.