Home / 872,439.32-1,204,884.11-777,339.45

Finding the Fourth Proportional to 872,439.32, 1,204,884.11 and 777,339.45

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Solution

The fourth proportional to 872,439.32, 1,204,884.11 and 777,339.45 is: 1,073,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,439.32 : 1,204,884.11 = 777,339.45 : x
  2. Step 2: Convert to fraction form
    872,439.32/1,204,884.11 = 777,339.45/x
  3. Step 3: Cross multiply
    872,439.32x = 1,204,884.11 × 777,339.45
  4. Step 4: Simplify right side
    872,439.32x = 936,603,953,324.49
  5. Step 5: Solve for x
    x = 936,603,953,324.49/872,439.32
  6. Step 6: Final answer
    x = 1,073,546.24

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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.