Home / 1,282,866.64-1,770,235.72-766,517.76

Finding the Fourth Proportional to 1,282,866.64, 1,770,235.72 and 766,517.76

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Solution

The fourth proportional to 1,282,866.64, 1,770,235.72 and 766,517.76 is: 1,057,722.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,866.64 : 1,770,235.72 = 766,517.76 : x
  2. Step 2: Convert to fraction form
    1,282,866.64/1,770,235.72 = 766,517.76/x
  3. Step 3: Cross multiply
    1,282,866.64x = 1,770,235.72 × 766,517.76
  4. Step 4: Simplify right side
    1,282,866.64x = 1,356,917,118,766.39
  5. Step 5: Solve for x
    x = 1,356,917,118,766.39/1,282,866.64
  6. Step 6: Final answer
    x = 1,057,722.66

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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.