Home / 774,813.80-1,158,821.27-690,022.61

Finding the Fourth Proportional to 774,813.80, 1,158,821.27 and 690,022.61

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Solution

The fourth proportional to 774,813.80, 1,158,821.27 and 690,022.61 is: 1,032,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,813.80 : 1,158,821.27 = 690,022.61 : x
  2. Step 2: Convert to fraction form
    774,813.80/1,158,821.27 = 690,022.61/x
  3. Step 3: Cross multiply
    774,813.80x = 1,158,821.27 × 690,022.61
  4. Step 4: Simplify right side
    774,813.80x = 799,612,873,798.80
  5. Step 5: Solve for x
    x = 799,612,873,798.80/774,813.80
  6. Step 6: Final answer
    x = 1,032,006.49

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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.