Home / 1,278,731.45-1,764,523.77-705,734.63

Finding the Fourth Proportional to 1,278,731.45, 1,764,523.77 and 705,734.63

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Solution

The fourth proportional to 1,278,731.45, 1,764,523.77 and 705,734.63 is: 973,844.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,731.45 : 1,764,523.77 = 705,734.63 : x
  2. Step 2: Convert to fraction form
    1,278,731.45/1,764,523.77 = 705,734.63/x
  3. Step 3: Cross multiply
    1,278,731.45x = 1,764,523.77 × 705,734.63
  4. Step 4: Simplify right side
    1,278,731.45x = 1,245,285,529,947.16
  5. Step 5: Solve for x
    x = 1,245,285,529,947.16/1,278,731.45
  6. Step 6: Final answer
    x = 973,844.45

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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.