Home / 1,258,238.38-1,736,540.20-742,138.24

Finding the Fourth Proportional to 1,258,238.38, 1,736,540.20 and 742,138.24

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Solution

The fourth proportional to 1,258,238.38, 1,736,540.20 and 742,138.24 is: 1,024,251.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,238.38 : 1,736,540.20 = 742,138.24 : x
  2. Step 2: Convert to fraction form
    1,258,238.38/1,736,540.20 = 742,138.24/x
  3. Step 3: Cross multiply
    1,258,238.38x = 1,736,540.20 × 742,138.24
  4. Step 4: Simplify right side
    1,258,238.38x = 1,288,752,887,717.25
  5. Step 5: Solve for x
    x = 1,288,752,887,717.25/1,258,238.38
  6. Step 6: Final answer
    x = 1,024,251.77

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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.