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Finding the Fourth Proportional to 800,391.24, 1,200,688.02 and 368,005.14

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Solution

The fourth proportional to 800,391.24, 1,200,688.02 and 368,005.14 is: 552,054.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,391.24 : 1,200,688.02 = 368,005.14 : x
  2. Step 2: Convert to fraction form
    800,391.24/1,200,688.02 = 368,005.14/x
  3. Step 3: Cross multiply
    800,391.24x = 1,200,688.02 × 368,005.14
  4. Step 4: Simplify right side
    800,391.24x = 441,859,362,896.42
  5. Step 5: Solve for x
    x = 441,859,362,896.42/800,391.24
  6. Step 6: Final answer
    x = 552,054.22

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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.