Home / 699,515.26-1,047,100.84-378,870.74

Finding the Fourth Proportional to 699,515.26, 1,047,100.84 and 378,870.74

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Solution

The fourth proportional to 699,515.26, 1,047,100.84 and 378,870.74 is: 567,129.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,515.26 : 1,047,100.84 = 378,870.74 : x
  2. Step 2: Convert to fraction form
    699,515.26/1,047,100.84 = 378,870.74/x
  3. Step 3: Cross multiply
    699,515.26x = 1,047,100.84 × 378,870.74
  4. Step 4: Simplify right side
    699,515.26x = 396,715,865,231.62
  5. Step 5: Solve for x
    x = 396,715,865,231.62/699,515.26
  6. Step 6: Final answer
    x = 567,129.68

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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.