Home / 3,928,972.80-5,414,572.80-3,442,368

Finding the Fourth Proportional to 3,928,972.80, 5,414,572.80 and 3,442,368

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Solution

The fourth proportional to 3,928,972.80, 5,414,572.80 and 3,442,368 is: 4,743,975.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,972.80 : 5,414,572.80 = 3,442,368 : x
  2. Step 2: Convert to fraction form
    3,928,972.80/5,414,572.80 = 3,442,368/x
  3. Step 3: Cross multiply
    3,928,972.80x = 5,414,572.80 × 3,442,368
  4. Step 4: Simplify right side
    3,928,972.80x = 18,638,952,140,390.40
  5. Step 5: Solve for x
    x = 18,638,952,140,390.40/3,928,972.80
  6. Step 6: Final answer
    x = 4,743,975.87

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1.5x scale

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.