Home / 775,474.85-1,068,969.25-545,405.18

Finding the Fourth Proportional to 775,474.85, 1,068,969.25 and 545,405.18

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Solution

The fourth proportional to 775,474.85, 1,068,969.25 and 545,405.18 is: 751,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,474.85 : 1,068,969.25 = 545,405.18 : x
  2. Step 2: Convert to fraction form
    775,474.85/1,068,969.25 = 545,405.18/x
  3. Step 3: Cross multiply
    775,474.85x = 1,068,969.25 × 545,405.18
  4. Step 4: Simplify right side
    775,474.85x = 583,021,367,560.58
  5. Step 5: Solve for x
    x = 583,021,367,560.58/775,474.85
  6. Step 6: Final answer
    x = 751,824.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.