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Finding the Fourth Proportional to 1,788,986.25, 2,468,801.03 and 984,170.25

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Solution

The fourth proportional to 1,788,986.25, 2,468,801.03 and 984,170.25 is: 1,358,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,986.25 : 2,468,801.03 = 984,170.25 : x
  2. Step 2: Convert to fraction form
    1,788,986.25/2,468,801.03 = 984,170.25/x
  3. Step 3: Cross multiply
    1,788,986.25x = 2,468,801.03 × 984,170.25
  4. Step 4: Simplify right side
    1,788,986.25x = 2,429,720,521,974.51
  5. Step 5: Solve for x
    x = 2,429,720,521,974.51/1,788,986.25
  6. Step 6: Final answer
    x = 1,358,154.95

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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.