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Finding the Fourth Proportional to 724,006.83, 999,133.80 and 401,723.22

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Solution

The fourth proportional to 724,006.83, 999,133.80 and 401,723.22 is: 554,380.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,006.83 : 999,133.80 = 401,723.22 : x
  2. Step 2: Convert to fraction form
    724,006.83/999,133.80 = 401,723.22/x
  3. Step 3: Cross multiply
    724,006.83x = 999,133.80 × 401,723.22
  4. Step 4: Simplify right side
    724,006.83x = 401,375,247,346.84
  5. Step 5: Solve for x
    x = 401,375,247,346.84/724,006.83
  6. Step 6: Final answer
    x = 554,380.47

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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.