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Finding the Fourth Proportional to 697,252.17, 962,167.55 and 391,299.98

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Solution

The fourth proportional to 697,252.17, 962,167.55 and 391,299.98 is: 539,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,252.17 : 962,167.55 = 391,299.98 : x
  2. Step 2: Convert to fraction form
    697,252.17/962,167.55 = 391,299.98/x
  3. Step 3: Cross multiply
    697,252.17x = 962,167.55 × 391,299.98
  4. Step 4: Simplify right side
    697,252.17x = 376,496,136,304.31
  5. Step 5: Solve for x
    x = 376,496,136,304.31/697,252.17
  6. Step 6: Final answer
    x = 539,971.27

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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.