Home / 1,245,561.68-1,861,517.62-909,310.44

Finding the Fourth Proportional to 1,245,561.68, 1,861,517.62 and 909,310.44

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Solution

The fourth proportional to 1,245,561.68, 1,861,517.62 and 909,310.44 is: 1,358,983.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,561.68 : 1,861,517.62 = 909,310.44 : x
  2. Step 2: Convert to fraction form
    1,245,561.68/1,861,517.62 = 909,310.44/x
  3. Step 3: Cross multiply
    1,245,561.68x = 1,861,517.62 × 909,310.44
  4. Step 4: Simplify right side
    1,245,561.68x = 1,692,697,406,109.95
  5. Step 5: Solve for x
    x = 1,692,697,406,109.95/1,245,561.68
  6. Step 6: Final answer
    x = 1,358,983.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.