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Finding the Fourth Proportional to 640,852.98, 960,524.73 and 261,537

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Solution

The fourth proportional to 640,852.98, 960,524.73 and 261,537 is: 391,997.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,852.98 : 960,524.73 = 261,537 : x
  2. Step 2: Convert to fraction form
    640,852.98/960,524.73 = 261,537/x
  3. Step 3: Cross multiply
    640,852.98x = 960,524.73 × 261,537
  4. Step 4: Simplify right side
    640,852.98x = 251,212,756,310.01
  5. Step 5: Solve for x
    x = 251,212,756,310.01/640,852.98
  6. Step 6: Final answer
    x = 391,997.48

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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.