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Finding the Fourth Proportional to 655,876.53, 981,592.55 and 403,316.91

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Solution

The fourth proportional to 655,876.53, 981,592.55 and 403,316.91 is: 603,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,876.53 : 981,592.55 = 403,316.91 : x
  2. Step 2: Convert to fraction form
    655,876.53/981,592.55 = 403,316.91/x
  3. Step 3: Cross multiply
    655,876.53x = 981,592.55 × 403,316.91
  4. Step 4: Simplify right side
    655,876.53x = 395,892,874,145.02
  5. Step 5: Solve for x
    x = 395,892,874,145.02/655,876.53
  6. Step 6: Final answer
    x = 603,608.84

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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.