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Finding the Fourth Proportional to 866,678.97, 1,300,163.63 and 298,037.01

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Solution

The fourth proportional to 866,678.97, 1,300,163.63 and 298,037.01 is: 447,105.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,678.97 : 1,300,163.63 = 298,037.01 : x
  2. Step 2: Convert to fraction form
    866,678.97/1,300,163.63 = 298,037.01/x
  3. Step 3: Cross multiply
    866,678.97x = 1,300,163.63 × 298,037.01
  4. Step 4: Simplify right side
    866,678.97x = 387,496,879,305.76
  5. Step 5: Solve for x
    x = 387,496,879,305.76/866,678.97
  6. Step 6: Final answer
    x = 447,105.44

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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.