Home / 1,109,217.79-1,664,412.49-787,087.41

Finding the Fourth Proportional to 1,109,217.79, 1,664,412.49 and 787,087.41

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Solution

The fourth proportional to 1,109,217.79, 1,664,412.49 and 787,087.41 is: 1,181,046.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,217.79 : 1,664,412.49 = 787,087.41 : x
  2. Step 2: Convert to fraction form
    1,109,217.79/1,664,412.49 = 787,087.41/x
  3. Step 3: Cross multiply
    1,109,217.79x = 1,664,412.49 × 787,087.41
  4. Step 4: Simplify right side
    1,109,217.79x = 1,310,038,115,603.02
  5. Step 5: Solve for x
    x = 1,310,038,115,603.02/1,109,217.79
  6. Step 6: Final answer
    x = 1,181,046.80

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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.