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Finding the Fourth Proportional to 914,608.80, 1,369,288.80 and 888,364.80

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Solution

The fourth proportional to 914,608.80, 1,369,288.80 and 888,364.80 is: 1,329,998.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,608.80 : 1,369,288.80 = 888,364.80 : x
  2. Step 2: Convert to fraction form
    914,608.80/1,369,288.80 = 888,364.80/x
  3. Step 3: Cross multiply
    914,608.80x = 1,369,288.80 × 888,364.80
  4. Step 4: Simplify right side
    914,608.80x = 1,216,427,970,954.24
  5. Step 5: Solve for x
    x = 1,216,427,970,954.24/914,608.80
  6. Step 6: Final answer
    x = 1,329,998.11

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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.