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Finding the Fourth Proportional to 697,369.09, 962,292.35 and 391,375.29

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Solution

The fourth proportional to 697,369.09, 962,292.35 and 391,375.29 is: 540,054.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,369.09 : 962,292.35 = 391,375.29 : x
  2. Step 2: Convert to fraction form
    697,369.09/962,292.35 = 391,375.29/x
  3. Step 3: Cross multiply
    697,369.09x = 962,292.35 × 391,375.29
  4. Step 4: Simplify right side
    697,369.09x = 376,617,447,546.03
  5. Step 5: Solve for x
    x = 376,617,447,546.03/697,369.09
  6. Step 6: Final answer
    x = 540,054.69

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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.