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Finding the Fourth Proportional to 655,147.46, 904,103.10 and 368,667.81

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Solution

The fourth proportional to 655,147.46, 904,103.10 and 368,667.81 is: 508,761.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,147.46 : 904,103.10 = 368,667.81 : x
  2. Step 2: Convert to fraction form
    655,147.46/904,103.10 = 368,667.81/x
  3. Step 3: Cross multiply
    655,147.46x = 904,103.10 × 368,667.81
  4. Step 4: Simplify right side
    655,147.46x = 333,313,709,891.21
  5. Step 5: Solve for x
    x = 333,313,709,891.21/655,147.46
  6. Step 6: Final answer
    x = 508,761.35

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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.