Home / 872,414.40-1,204,849.74-777,314.55

Finding the Fourth Proportional to 872,414.40, 1,204,849.74 and 777,314.55

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Solution

The fourth proportional to 872,414.40, 1,204,849.74 and 777,314.55 is: 1,073,511.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,414.40 : 1,204,849.74 = 777,314.55 : x
  2. Step 2: Convert to fraction form
    872,414.40/1,204,849.74 = 777,314.55/x
  3. Step 3: Cross multiply
    872,414.40x = 1,204,849.74 × 777,314.55
  4. Step 4: Simplify right side
    872,414.40x = 936,547,233,465.72
  5. Step 5: Solve for x
    x = 936,547,233,465.72/872,414.40
  6. Step 6: Final answer
    x = 1,073,511.89

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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.