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Finding the Fourth Proportional to 655,876.03, 981,591.81 and 403,316.41

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Solution

The fourth proportional to 655,876.03, 981,591.81 and 403,316.41 is: 603,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,876.03 : 981,591.81 = 403,316.41 : x
  2. Step 2: Convert to fraction form
    655,876.03/981,591.81 = 403,316.41/x
  3. Step 3: Cross multiply
    655,876.03x = 981,591.81 × 403,316.41
  4. Step 4: Simplify right side
    655,876.03x = 395,892,082,878.02
  5. Step 5: Solve for x
    x = 395,892,082,878.02/655,876.03
  6. Step 6: Final answer
    x = 603,608.10

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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.