Home / 2,087,430.30-3,131,145.45-1,247,622.30

Finding the Fourth Proportional to 2,087,430.30, 3,131,145.45 and 1,247,622.30

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Solution

The fourth proportional to 2,087,430.30, 3,131,145.45 and 1,247,622.30 is: 1,871,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,430.30 : 3,131,145.45 = 1,247,622.30 : x
  2. Step 2: Convert to fraction form
    2,087,430.30/3,131,145.45 = 1,247,622.30/x
  3. Step 3: Cross multiply
    2,087,430.30x = 3,131,145.45 × 1,247,622.30
  4. Step 4: Simplify right side
    2,087,430.30x = 3,906,486,887,963.54
  5. Step 5: Solve for x
    x = 3,906,486,887,963.54/2,087,430.30
  6. Step 6: Final answer
    x = 1,871,433.45

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Double scale
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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.