Home / 1,230,455.70-1,845,683.55-1,120,230.90

Finding the Fourth Proportional to 1,230,455.70, 1,845,683.55 and 1,120,230.90

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Solution

The fourth proportional to 1,230,455.70, 1,845,683.55 and 1,120,230.90 is: 1,680,346.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,455.70 : 1,845,683.55 = 1,120,230.90 : x
  2. Step 2: Convert to fraction form
    1,230,455.70/1,845,683.55 = 1,120,230.90/x
  3. Step 3: Cross multiply
    1,230,455.70x = 1,845,683.55 × 1,120,230.90
  4. Step 4: Simplify right side
    1,230,455.70x = 2,067,591,744,331.69
  5. Step 5: Solve for x
    x = 2,067,591,744,331.69/1,230,455.70
  6. Step 6: Final answer
    x = 1,680,346.35

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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.