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Finding the Fourth Proportional to 574,719.89, 793,138.05 and 320,071.08

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Solution

The fourth proportional to 574,719.89, 793,138.05 and 320,071.08 is: 441,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,719.89 : 793,138.05 = 320,071.08 : x
  2. Step 2: Convert to fraction form
    574,719.89/793,138.05 = 320,071.08/x
  3. Step 3: Cross multiply
    574,719.89x = 793,138.05 × 320,071.08
  4. Step 4: Simplify right side
    574,719.89x = 253,860,548,286.90
  5. Step 5: Solve for x
    x = 253,860,548,286.90/574,719.89
  6. Step 6: Final answer
    x = 441,711.78

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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.