Home / 2,147,719.02-3,220,734.32-781,168.32

Finding the Fourth Proportional to 2,147,719.02, 3,220,734.32 and 781,168.32

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Solution

The fourth proportional to 2,147,719.02, 3,220,734.32 and 781,168.32 is: 1,171,445.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,719.02 : 3,220,734.32 = 781,168.32 : x
  2. Step 2: Convert to fraction form
    2,147,719.02/3,220,734.32 = 781,168.32/x
  3. Step 3: Cross multiply
    2,147,719.02x = 3,220,734.32 × 781,168.32
  4. Step 4: Simplify right side
    2,147,719.02x = 2,515,935,617,920.74
  5. Step 5: Solve for x
    x = 2,515,935,617,920.74/2,147,719.02
  6. Step 6: Final answer
    x = 1,171,445.42

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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.