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Finding the Fourth Proportional to 655,441.48, 904,499.22 and 368,960.68

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Solution

The fourth proportional to 655,441.48, 904,499.22 and 368,960.68 is: 509,160.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,441.48 : 904,499.22 = 368,960.68 : x
  2. Step 2: Convert to fraction form
    655,441.48/904,499.22 = 368,960.68/x
  3. Step 3: Cross multiply
    655,441.48x = 904,499.22 × 368,960.68
  4. Step 4: Simplify right side
    655,441.48x = 333,724,647,270.67
  5. Step 5: Solve for x
    x = 333,724,647,270.67/655,441.48
  6. Step 6: Final answer
    x = 509,160.10

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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.