Home / 886,778.62-1,223,620.23-499,538.68

Finding the Fourth Proportional to 886,778.62, 1,223,620.23 and 499,538.68

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Solution

The fourth proportional to 886,778.62, 1,223,620.23 and 499,538.68 is: 689,287.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,778.62 : 1,223,620.23 = 499,538.68 : x
  2. Step 2: Convert to fraction form
    886,778.62/1,223,620.23 = 499,538.68/x
  3. Step 3: Cross multiply
    886,778.62x = 1,223,620.23 × 499,538.68
  4. Step 4: Simplify right side
    886,778.62x = 611,245,634,515.50
  5. Step 5: Solve for x
    x = 611,245,634,515.50/886,778.62
  6. Step 6: Final answer
    x = 689,287.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.