Home / 930,939.20-1,396,408.80-836,460.80

Finding the Fourth Proportional to 930,939.20, 1,396,408.80 and 836,460.80

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Solution

The fourth proportional to 930,939.20, 1,396,408.80 and 836,460.80 is: 1,254,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,939.20 : 1,396,408.80 = 836,460.80 : x
  2. Step 2: Convert to fraction form
    930,939.20/1,396,408.80 = 836,460.80/x
  3. Step 3: Cross multiply
    930,939.20x = 1,396,408.80 × 836,460.80
  4. Step 4: Simplify right side
    930,939.20x = 1,168,041,221,975.04
  5. Step 5: Solve for x
    x = 1,168,041,221,975.04/930,939.20
  6. Step 6: Final answer
    x = 1,254,691.20

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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.