Home / 1,215,065.78-1,676,806.35-671,199.38

Finding the Fourth Proportional to 1,215,065.78, 1,676,806.35 and 671,199.38

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Solution

The fourth proportional to 1,215,065.78, 1,676,806.35 and 671,199.38 is: 926,263.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,065.78 : 1,676,806.35 = 671,199.38 : x
  2. Step 2: Convert to fraction form
    1,215,065.78/1,676,806.35 = 671,199.38/x
  3. Step 3: Cross multiply
    1,215,065.78x = 1,676,806.35 × 671,199.38
  4. Step 4: Simplify right side
    1,215,065.78x = 1,125,471,382,500.06
  5. Step 5: Solve for x
    x = 1,125,471,382,500.06/1,215,065.78
  6. Step 6: Final answer
    x = 926,263.75

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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.