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Finding the Fourth Proportional to 510,965.40, 705,132.42 and 296,229.96

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Solution

The fourth proportional to 510,965.40, 705,132.42 and 296,229.96 is: 408,797.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,965.40 : 705,132.42 = 296,229.96 : x
  2. Step 2: Convert to fraction form
    510,965.40/705,132.42 = 296,229.96/x
  3. Step 3: Cross multiply
    510,965.40x = 705,132.42 × 296,229.96
  4. Step 4: Simplify right side
    510,965.40x = 208,881,348,571.30
  5. Step 5: Solve for x
    x = 208,881,348,571.30/510,965.40
  6. Step 6: Final answer
    x = 408,797.44

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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.