Home / 1,255,138.20-1,732,104.18-682,178.40

Finding the Fourth Proportional to 1,255,138.20, 1,732,104.18 and 682,178.40

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Solution

The fourth proportional to 1,255,138.20, 1,732,104.18 and 682,178.40 is: 941,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,138.20 : 1,732,104.18 = 682,178.40 : x
  2. Step 2: Convert to fraction form
    1,255,138.20/1,732,104.18 = 682,178.40/x
  3. Step 3: Cross multiply
    1,255,138.20x = 1,732,104.18 × 682,178.40
  4. Step 4: Simplify right side
    1,255,138.20x = 1,181,604,058,145.71
  5. Step 5: Solve for x
    x = 1,181,604,058,145.71/1,255,138.20
  6. Step 6: Final answer
    x = 941,413.51

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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.