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Finding the Fourth Proportional to 724,033.88, 999,173.64 and 401,773.96

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Solution

The fourth proportional to 724,033.88, 999,173.64 and 401,773.96 is: 554,451.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,033.88 : 999,173.64 = 401,773.96 : x
  2. Step 2: Convert to fraction form
    724,033.88/999,173.64 = 401,773.96/x
  3. Step 3: Cross multiply
    724,033.88x = 999,173.64 × 401,773.96
  4. Step 4: Simplify right side
    724,033.88x = 401,441,950,070.41
  5. Step 5: Solve for x
    x = 401,441,950,070.41/724,033.88
  6. Step 6: Final answer
    x = 554,451.89

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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.