Home / 1,382,257.08-2,079,710.10-821,711.16

Finding the Fourth Proportional to 1,382,257.08, 2,079,710.10 and 821,711.16

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Solution

The fourth proportional to 1,382,257.08, 2,079,710.10 and 821,711.16 is: 1,236,326.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,257.08 : 2,079,710.10 = 821,711.16 : x
  2. Step 2: Convert to fraction form
    1,382,257.08/2,079,710.10 = 821,711.16/x
  3. Step 3: Cross multiply
    1,382,257.08x = 2,079,710.10 × 821,711.16
  4. Step 4: Simplify right side
    1,382,257.08x = 1,708,920,998,734.72
  5. Step 5: Solve for x
    x = 1,708,920,998,734.72/1,382,257.08
  6. Step 6: Final answer
    x = 1,236,326.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.