Home / 1,079,815.32-1,490,083.79-620,856.97

Finding the Fourth Proportional to 1,079,815.32, 1,490,083.79 and 620,856.97

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Solution

The fourth proportional to 1,079,815.32, 1,490,083.79 and 620,856.97 is: 856,747.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,815.32 : 1,490,083.79 = 620,856.97 : x
  2. Step 2: Convert to fraction form
    1,079,815.32/1,490,083.79 = 620,856.97/x
  3. Step 3: Cross multiply
    1,079,815.32x = 1,490,083.79 × 620,856.97
  4. Step 4: Simplify right side
    1,079,815.32x = 925,128,900,076.02
  5. Step 5: Solve for x
    x = 925,128,900,076.02/1,079,815.32
  6. Step 6: Final answer
    x = 856,747.34

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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.