Home / 930,904.20-1,396,356.30-659,278.80

Finding the Fourth Proportional to 930,904.20, 1,396,356.30 and 659,278.80

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Solution

The fourth proportional to 930,904.20, 1,396,356.30 and 659,278.80 is: 988,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,904.20 : 1,396,356.30 = 659,278.80 : x
  2. Step 2: Convert to fraction form
    930,904.20/1,396,356.30 = 659,278.80/x
  3. Step 3: Cross multiply
    930,904.20x = 1,396,356.30 × 659,278.80
  4. Step 4: Simplify right side
    930,904.20x = 920,588,105,836.44
  5. Step 5: Solve for x
    x = 920,588,105,836.44/930,904.20
  6. Step 6: Final answer
    x = 988,918.20

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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.