Home / 752,320.98-1,128,675.87-279,141.30

Finding the Fourth Proportional to 752,320.98, 1,128,675.87 and 279,141.30

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Solution

The fourth proportional to 752,320.98, 1,128,675.87 and 279,141.30 is: 418,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,320.98 : 1,128,675.87 = 279,141.30 : x
  2. Step 2: Convert to fraction form
    752,320.98/1,128,675.87 = 279,141.30/x
  3. Step 3: Cross multiply
    752,320.98x = 1,128,675.87 × 279,141.30
  4. Step 4: Simplify right side
    752,320.98x = 315,060,049,630.43
  5. Step 5: Solve for x
    x = 315,060,049,630.43/752,320.98
  6. Step 6: Final answer
    x = 418,784.08

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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.