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Finding the Fourth Proportional to 571,878.86, 857,824.43 and 172,523.09

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Solution

The fourth proportional to 571,878.86, 857,824.43 and 172,523.09 is: 258,786.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,878.86 : 857,824.43 = 172,523.09 : x
  2. Step 2: Convert to fraction form
    571,878.86/857,824.43 = 172,523.09/x
  3. Step 3: Cross multiply
    571,878.86x = 857,824.43 × 172,523.09
  4. Step 4: Simplify right side
    571,878.86x = 147,994,516,189.35
  5. Step 5: Solve for x
    x = 147,994,516,189.35/571,878.86
  6. Step 6: Final answer
    x = 258,786.48

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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.