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Finding the Fourth Proportional to 510,728.58, 765,057.48 and 236,790

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Solution

The fourth proportional to 510,728.58, 765,057.48 and 236,790 is: 354,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,728.58 : 765,057.48 = 236,790 : x
  2. Step 2: Convert to fraction form
    510,728.58/765,057.48 = 236,790/x
  3. Step 3: Cross multiply
    510,728.58x = 765,057.48 × 236,790
  4. Step 4: Simplify right side
    510,728.58x = 181,157,960,689.20
  5. Step 5: Solve for x
    x = 181,157,960,689.20/510,728.58
  6. Step 6: Final answer
    x = 354,704.96

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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.