Home / 753,268.52-1,129,902.78-280,073

Finding the Fourth Proportional to 753,268.52, 1,129,902.78 and 280,073

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Solution

The fourth proportional to 753,268.52, 1,129,902.78 and 280,073 is: 420,109.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,268.52 : 1,129,902.78 = 280,073 : x
  2. Step 2: Convert to fraction form
    753,268.52/1,129,902.78 = 280,073/x
  3. Step 3: Cross multiply
    753,268.52x = 1,129,902.78 × 280,073
  4. Step 4: Simplify right side
    753,268.52x = 316,455,261,302.94
  5. Step 5: Solve for x
    x = 316,455,261,302.94/753,268.52
  6. Step 6: Final answer
    x = 420,109.50

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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.