Home / 820,036.80-1,227,722.40-726,724.80

Finding the Fourth Proportional to 820,036.80, 1,227,722.40 and 726,724.80

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Solution

The fourth proportional to 820,036.80, 1,227,722.40 and 726,724.80 is: 1,088,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,036.80 : 1,227,722.40 = 726,724.80 : x
  2. Step 2: Convert to fraction form
    820,036.80/1,227,722.40 = 726,724.80/x
  3. Step 3: Cross multiply
    820,036.80x = 1,227,722.40 × 726,724.80
  4. Step 4: Simplify right side
    820,036.80x = 892,216,315,595.52
  5. Step 5: Solve for x
    x = 892,216,315,595.52/820,036.80
  6. Step 6: Final answer
    x = 1,088,019.85

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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.