Home / 646,439.28-969,208.38-286,414.44

Finding the Fourth Proportional to 646,439.28, 969,208.38 and 286,414.44

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Solution

The fourth proportional to 646,439.28, 969,208.38 and 286,414.44 is: 429,422.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,439.28 : 969,208.38 = 286,414.44 : x
  2. Step 2: Convert to fraction form
    646,439.28/969,208.38 = 286,414.44/x
  3. Step 3: Cross multiply
    646,439.28x = 969,208.38 × 286,414.44
  4. Step 4: Simplify right side
    646,439.28x = 277,595,275,401.01
  5. Step 5: Solve for x
    x = 277,595,275,401.01/646,439.28
  6. Step 6: Final answer
    x = 429,422.04

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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.