Home / 2,155,745.20-3,229,417.32-1,312,204.72

Finding the Fourth Proportional to 2,155,745.20, 3,229,417.32 and 1,312,204.72

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Solution

The fourth proportional to 2,155,745.20, 3,229,417.32 and 1,312,204.72 is: 1,965,750.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,745.20 : 3,229,417.32 = 1,312,204.72 : x
  2. Step 2: Convert to fraction form
    2,155,745.20/3,229,417.32 = 1,312,204.72/x
  3. Step 3: Cross multiply
    2,155,745.20x = 3,229,417.32 × 1,312,204.72
  4. Step 4: Simplify right side
    2,155,745.20x = 4,237,656,650,153.75
  5. Step 5: Solve for x
    x = 4,237,656,650,153.75/2,155,745.20
  6. Step 6: Final answer
    x = 1,965,750.24

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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.