Home / 1,260,216.20-1,890,324.30-1,149,991.40

Finding the Fourth Proportional to 1,260,216.20, 1,890,324.30 and 1,149,991.40

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Solution

The fourth proportional to 1,260,216.20, 1,890,324.30 and 1,149,991.40 is: 1,724,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,216.20 : 1,890,324.30 = 1,149,991.40 : x
  2. Step 2: Convert to fraction form
    1,260,216.20/1,890,324.30 = 1,149,991.40/x
  3. Step 3: Cross multiply
    1,260,216.20x = 1,890,324.30 × 1,149,991.40
  4. Step 4: Simplify right side
    1,260,216.20x = 2,173,856,688,211.02
  5. Step 5: Solve for x
    x = 2,173,856,688,211.02/1,260,216.20
  6. Step 6: Final answer
    x = 1,724,987.10

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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.