Home / 1,383,891.76-2,073,058.65-689,366.87

Finding the Fourth Proportional to 1,383,891.76, 2,073,058.65 and 689,366.87

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Solution

The fourth proportional to 1,383,891.76, 2,073,058.65 and 689,366.87 is: 1,032,665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,891.76 : 2,073,058.65 = 689,366.87 : x
  2. Step 2: Convert to fraction form
    1,383,891.76/2,073,058.65 = 689,366.87/x
  3. Step 3: Cross multiply
    1,383,891.76x = 2,073,058.65 × 689,366.87
  4. Step 4: Simplify right side
    1,383,891.76x = 1,429,097,942,517.83
  5. Step 5: Solve for x
    x = 1,429,097,942,517.83/1,383,891.76
  6. Step 6: Final answer
    x = 1,032,665.98

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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.