Home / 484,947.20-727,420.86-147,989.62

Finding the Fourth Proportional to 484,947.20, 727,420.86 and 147,989.62

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Solution

The fourth proportional to 484,947.20, 727,420.86 and 147,989.62 is: 221,984.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,947.20 : 727,420.86 = 147,989.62 : x
  2. Step 2: Convert to fraction form
    484,947.20/727,420.86 = 147,989.62/x
  3. Step 3: Cross multiply
    484,947.20x = 727,420.86 × 147,989.62
  4. Step 4: Simplify right side
    484,947.20x = 107,650,733,014.37
  5. Step 5: Solve for x
    x = 107,650,733,014.37/484,947.20
  6. Step 6: Final answer
    x = 221,984.44

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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.