Home / 1,151,726.80-1,728,367.80-646,286.80

Finding the Fourth Proportional to 1,151,726.80, 1,728,367.80 and 646,286.80

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Solution

The fourth proportional to 1,151,726.80, 1,728,367.80 and 646,286.80 is: 969,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,726.80 : 1,728,367.80 = 646,286.80 : x
  2. Step 2: Convert to fraction form
    1,151,726.80/1,728,367.80 = 646,286.80/x
  3. Step 3: Cross multiply
    1,151,726.80x = 1,728,367.80 × 646,286.80
  4. Step 4: Simplify right side
    1,151,726.80x = 1,117,021,294,685.04
  5. Step 5: Solve for x
    x = 1,117,021,294,685.04/1,151,726.80
  6. Step 6: Final answer
    x = 969,866.55

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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.