Home / 1,079,956.92-1,490,531.94-621,036.12

Finding the Fourth Proportional to 1,079,956.92, 1,490,531.94 and 621,036.12

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Solution

The fourth proportional to 1,079,956.92, 1,490,531.94 and 621,036.12 is: 857,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,956.92 : 1,490,531.94 = 621,036.12 : x
  2. Step 2: Convert to fraction form
    1,079,956.92/1,490,531.94 = 621,036.12/x
  3. Step 3: Cross multiply
    1,079,956.92x = 1,490,531.94 × 621,036.12
  4. Step 4: Simplify right side
    1,079,956.92x = 925,674,172,753.67
  5. Step 5: Solve for x
    x = 925,674,172,753.67/1,079,956.92
  6. Step 6: Final answer
    x = 857,139.91

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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.