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Finding the Fourth Proportional to 484,974.80, 727,462.20 and 219,035.60

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Solution

The fourth proportional to 484,974.80, 727,462.20 and 219,035.60 is: 328,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,974.80 : 727,462.20 = 219,035.60 : x
  2. Step 2: Convert to fraction form
    484,974.80/727,462.20 = 219,035.60/x
  3. Step 3: Cross multiply
    484,974.80x = 727,462.20 × 219,035.60
  4. Step 4: Simplify right side
    484,974.80x = 159,340,119,454.32
  5. Step 5: Solve for x
    x = 159,340,119,454.32/484,974.80
  6. Step 6: Final answer
    x = 328,553.40

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1.5x scale

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.