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Finding the Fourth Proportional to 697,792.52, 962,950.03 and 391,881.80

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Solution

The fourth proportional to 697,792.52, 962,950.03 and 391,881.80 is: 540,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,792.52 : 962,950.03 = 391,881.80 : x
  2. Step 2: Convert to fraction form
    697,792.52/962,950.03 = 391,881.80/x
  3. Step 3: Cross multiply
    697,792.52x = 962,950.03 × 391,881.80
  4. Step 4: Simplify right side
    697,792.52x = 377,362,589,832.95
  5. Step 5: Solve for x
    x = 377,362,589,832.95/697,792.52
  6. Step 6: Final answer
    x = 540,794.83

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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.