Home / 1,260,945.80-1,891,418.70-1,157,726.60

Finding the Fourth Proportional to 1,260,945.80, 1,891,418.70 and 1,157,726.60

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Solution

The fourth proportional to 1,260,945.80, 1,891,418.70 and 1,157,726.60 is: 1,736,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,945.80 : 1,891,418.70 = 1,157,726.60 : x
  2. Step 2: Convert to fraction form
    1,260,945.80/1,891,418.70 = 1,157,726.60/x
  3. Step 3: Cross multiply
    1,260,945.80x = 1,891,418.70 × 1,157,726.60
  4. Step 4: Simplify right side
    1,260,945.80x = 2,189,745,740,727.42
  5. Step 5: Solve for x
    x = 2,189,745,740,727.42/1,260,945.80
  6. Step 6: Final answer
    x = 1,736,589.90

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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.