Home / 1,284,515.80-1,926,773.70-809,661.40

Finding the Fourth Proportional to 1,284,515.80, 1,926,773.70 and 809,661.40

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Solution

The fourth proportional to 1,284,515.80, 1,926,773.70 and 809,661.40 is: 1,214,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,515.80 : 1,926,773.70 = 809,661.40 : x
  2. Step 2: Convert to fraction form
    1,284,515.80/1,926,773.70 = 809,661.40/x
  3. Step 3: Cross multiply
    1,284,515.80x = 1,926,773.70 × 809,661.40
  4. Step 4: Simplify right side
    1,284,515.80x = 1,560,034,291,425.18
  5. Step 5: Solve for x
    x = 1,560,034,291,425.18/1,284,515.80
  6. Step 6: Final answer
    x = 1,214,492.10

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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.