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Finding the Fourth Proportional to 697,463.23, 962,446.12 and 391,480.50

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Solution

The fourth proportional to 697,463.23, 962,446.12 and 391,480.50 is: 540,213.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,463.23 : 962,446.12 = 391,480.50 : x
  2. Step 2: Convert to fraction form
    697,463.23/962,446.12 = 391,480.50/x
  3. Step 3: Cross multiply
    697,463.23x = 962,446.12 × 391,480.50
  4. Step 4: Simplify right side
    697,463.23x = 376,778,883,468.43
  5. Step 5: Solve for x
    x = 376,778,883,468.43/697,463.23
  6. Step 6: Final answer
    x = 540,213.26

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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.