Home / 1,278,811.28-1,764,759.72-705,851.61

Finding the Fourth Proportional to 1,278,811.28, 1,764,759.72 and 705,851.61

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Solution

The fourth proportional to 1,278,811.28, 1,764,759.72 and 705,851.61 is: 974,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,811.28 : 1,764,759.72 = 705,851.61 : x
  2. Step 2: Convert to fraction form
    1,278,811.28/1,764,759.72 = 705,851.61/x
  3. Step 3: Cross multiply
    1,278,811.28x = 1,764,759.72 × 705,851.61
  4. Step 4: Simplify right side
    1,278,811.28x = 1,245,658,489,625.15
  5. Step 5: Solve for x
    x = 1,245,658,489,625.15/1,278,811.28
  6. Step 6: Final answer
    x = 974,075.31

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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.