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Finding the Fourth Proportional to 510,554.72, 765,476.87 and 226,090.78

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Solution

The fourth proportional to 510,554.72, 765,476.87 and 226,090.78 is: 338,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,554.72 : 765,476.87 = 226,090.78 : x
  2. Step 2: Convert to fraction form
    510,554.72/765,476.87 = 226,090.78/x
  3. Step 3: Cross multiply
    510,554.72x = 765,476.87 × 226,090.78
  4. Step 4: Simplify right side
    510,554.72x = 173,067,260,969.60
  5. Step 5: Solve for x
    x = 173,067,260,969.60/510,554.72
  6. Step 6: Final answer
    x = 338,978.87

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1.5x scale

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.