Home / 1,427,121.20-2,138,867.40-584,721.20

Finding the Fourth Proportional to 1,427,121.20, 2,138,867.40 and 584,721.20

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Solution

The fourth proportional to 1,427,121.20, 2,138,867.40 and 584,721.20 is: 876,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,121.20 : 2,138,867.40 = 584,721.20 : x
  2. Step 2: Convert to fraction form
    1,427,121.20/2,138,867.40 = 584,721.20/x
  3. Step 3: Cross multiply
    1,427,121.20x = 2,138,867.40 × 584,721.20
  4. Step 4: Simplify right side
    1,427,121.20x = 1,250,641,112,768.88
  5. Step 5: Solve for x
    x = 1,250,641,112,768.88/1,427,121.20
  6. Step 6: Final answer
    x = 876,338.40

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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.