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Finding the Fourth Proportional to 501,002.64, 691,393.32 and 274,634.64

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Solution

The fourth proportional to 501,002.64, 691,393.32 and 274,634.64 is: 379,001.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,002.64 : 691,393.32 = 274,634.64 : x
  2. Step 2: Convert to fraction form
    501,002.64/691,393.32 = 274,634.64/x
  3. Step 3: Cross multiply
    501,002.64x = 691,393.32 × 274,634.64
  4. Step 4: Simplify right side
    501,002.64x = 189,880,555,536.61
  5. Step 5: Solve for x
    x = 189,880,555,536.61/501,002.64
  6. Step 6: Final answer
    x = 379,001.11

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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.