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Finding the Fourth Proportional to 697,227.32, 962,161.74 and 391,310.84

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Solution

The fourth proportional to 697,227.32, 962,161.74 and 391,310.84 is: 540,002.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,227.32 : 962,161.74 = 391,310.84 : x
  2. Step 2: Convert to fraction form
    697,227.32/962,161.74 = 391,310.84/x
  3. Step 3: Cross multiply
    697,227.32x = 962,161.74 × 391,310.84
  4. Step 4: Simplify right side
    697,227.32x = 376,504,318,695.26
  5. Step 5: Solve for x
    x = 376,504,318,695.26/697,227.32
  6. Step 6: Final answer
    x = 540,002.25

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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.