Home / 928,081.80-1,392,122.70-815,888.70

Finding the Fourth Proportional to 928,081.80, 1,392,122.70 and 815,888.70

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Solution

The fourth proportional to 928,081.80, 1,392,122.70 and 815,888.70 is: 1,223,833.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,081.80 : 1,392,122.70 = 815,888.70 : x
  2. Step 2: Convert to fraction form
    928,081.80/1,392,122.70 = 815,888.70/x
  3. Step 3: Cross multiply
    928,081.80x = 1,392,122.70 × 815,888.70
  4. Step 4: Simplify right side
    928,081.80x = 1,135,817,179,943.49
  5. Step 5: Solve for x
    x = 1,135,817,179,943.49/928,081.80
  6. Step 6: Final answer
    x = 1,223,833.05

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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.