Home / 603,288.80-905,516.40-304,107.20

Finding the Fourth Proportional to 603,288.80, 905,516.40 and 304,107.20

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Solution

The fourth proportional to 603,288.80, 905,516.40 and 304,107.20 is: 456,454.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,288.80 : 905,516.40 = 304,107.20 : x
  2. Step 2: Convert to fraction form
    603,288.80/905,516.40 = 304,107.20/x
  3. Step 3: Cross multiply
    603,288.80x = 905,516.40 × 304,107.20
  4. Step 4: Simplify right side
    603,288.80x = 275,374,056,958.08
  5. Step 5: Solve for x
    x = 275,374,056,958.08/603,288.80
  6. Step 6: Final answer
    x = 456,454.78

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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.