Home / 2,320,712.56-3,202,532.64-1,288,159.68

Finding the Fourth Proportional to 2,320,712.56, 3,202,532.64 and 1,288,159.68

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Solution

The fourth proportional to 2,320,712.56, 3,202,532.64 and 1,288,159.68 is: 1,777,632.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320,712.56 : 3,202,532.64 = 1,288,159.68 : x
  2. Step 2: Convert to fraction form
    2,320,712.56/3,202,532.64 = 1,288,159.68/x
  3. Step 3: Cross multiply
    2,320,712.56x = 3,202,532.64 × 1,288,159.68
  4. Step 4: Simplify right side
    2,320,712.56x = 4,125,373,420,731.96
  5. Step 5: Solve for x
    x = 4,125,373,420,731.96/2,320,712.56
  6. Step 6: Final answer
    x = 1,777,632.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.