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Finding the Fourth Proportional to 510,010.20, 765,015.30 and 450,961.20

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Solution

The fourth proportional to 510,010.20, 765,015.30 and 450,961.20 is: 676,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,010.20 : 765,015.30 = 450,961.20 : x
  2. Step 2: Convert to fraction form
    510,010.20/765,015.30 = 450,961.20/x
  3. Step 3: Cross multiply
    510,010.20x = 765,015.30 × 450,961.20
  4. Step 4: Simplify right side
    510,010.20x = 344,992,217,706.36
  5. Step 5: Solve for x
    x = 344,992,217,706.36/510,010.20
  6. Step 6: Final answer
    x = 676,441.80

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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.