Home / 1,284,078.18-1,926,141.83-419,515.49

Finding the Fourth Proportional to 1,284,078.18, 1,926,141.83 and 419,515.49

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Solution

The fourth proportional to 1,284,078.18, 1,926,141.83 and 419,515.49 is: 629,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,078.18 : 1,926,141.83 = 419,515.49 : x
  2. Step 2: Convert to fraction form
    1,284,078.18/1,926,141.83 = 419,515.49/x
  3. Step 3: Cross multiply
    1,284,078.18x = 1,926,141.83 × 419,515.49
  4. Step 4: Simplify right side
    1,284,078.18x = 808,046,327,078.36
  5. Step 5: Solve for x
    x = 808,046,327,078.36/1,284,078.18
  6. Step 6: Final answer
    x = 629,281.25

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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.