Home / 3,179,989.20-4,388,483.40-1,729,790.16

Finding the Fourth Proportional to 3,179,989.20, 4,388,483.40 and 1,729,790.16

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Solution

The fourth proportional to 3,179,989.20, 4,388,483.40 and 1,729,790.16 is: 2,387,163.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,989.20 : 4,388,483.40 = 1,729,790.16 : x
  2. Step 2: Convert to fraction form
    3,179,989.20/4,388,483.40 = 1,729,790.16/x
  3. Step 3: Cross multiply
    3,179,989.20x = 4,388,483.40 × 1,729,790.16
  4. Step 4: Simplify right side
    3,179,989.20x = 7,591,155,402,643.35
  5. Step 5: Solve for x
    x = 7,591,155,402,643.35/3,179,989.20
  6. Step 6: Final answer
    x = 2,387,163.89

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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.