Home / 1,260,312.20-1,890,469.41-540,186.57

Finding the Fourth Proportional to 1,260,312.20, 1,890,469.41 and 540,186.57

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Solution

The fourth proportional to 1,260,312.20, 1,890,469.41 and 540,186.57 is: 810,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,312.20 : 1,890,469.41 = 540,186.57 : x
  2. Step 2: Convert to fraction form
    1,260,312.20/1,890,469.41 = 540,186.57/x
  3. Step 3: Cross multiply
    1,260,312.20x = 1,890,469.41 × 540,186.57
  4. Step 4: Simplify right side
    1,260,312.20x = 1,021,206,186,277.82
  5. Step 5: Solve for x
    x = 1,021,206,186,277.82/1,260,312.20
  6. Step 6: Final answer
    x = 810,280.33

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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.