Home / 2,172,309.60-3,258,448.20-655,989.60

Finding the Fourth Proportional to 2,172,309.60, 3,258,448.20 and 655,989.60

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Solution

The fourth proportional to 2,172,309.60, 3,258,448.20 and 655,989.60 is: 983,979.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,309.60 : 3,258,448.20 = 655,989.60 : x
  2. Step 2: Convert to fraction form
    2,172,309.60/3,258,448.20 = 655,989.60/x
  3. Step 3: Cross multiply
    2,172,309.60x = 3,258,448.20 × 655,989.60
  4. Step 4: Simplify right side
    2,172,309.60x = 2,137,508,131,338.72
  5. Step 5: Solve for x
    x = 2,137,508,131,338.72/2,172,309.60
  6. Step 6: Final answer
    x = 983,979.51

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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.