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Finding the Fourth Proportional to 888,896.84, 1,333,000.74 and 320,156.54

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Solution

The fourth proportional to 888,896.84, 1,333,000.74 and 320,156.54 is: 480,110.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,896.84 : 1,333,000.74 = 320,156.54 : x
  2. Step 2: Convert to fraction form
    888,896.84/1,333,000.74 = 320,156.54/x
  3. Step 3: Cross multiply
    888,896.84x = 1,333,000.74 × 320,156.54
  4. Step 4: Simplify right side
    888,896.84x = 426,768,904,735.84
  5. Step 5: Solve for x
    x = 426,768,904,735.84/888,896.84
  6. Step 6: Final answer
    x = 480,110.72

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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.