Home / 1,209,991.20-1,814,986.80-1,156,847.10

Finding the Fourth Proportional to 1,209,991.20, 1,814,986.80 and 1,156,847.10

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Solution

The fourth proportional to 1,209,991.20, 1,814,986.80 and 1,156,847.10 is: 1,735,270.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,991.20 : 1,814,986.80 = 1,156,847.10 : x
  2. Step 2: Convert to fraction form
    1,209,991.20/1,814,986.80 = 1,156,847.10/x
  3. Step 3: Cross multiply
    1,209,991.20x = 1,814,986.80 × 1,156,847.10
  4. Step 4: Simplify right side
    1,209,991.20x = 2,099,662,216,118.28
  5. Step 5: Solve for x
    x = 2,099,662,216,118.28/1,209,991.20
  6. Step 6: Final answer
    x = 1,735,270.65

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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.