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Finding the Fourth Proportional to 633,451.40, 873,945.96 and 361,322.72

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Solution

The fourth proportional to 633,451.40, 873,945.96 and 361,322.72 is: 498,501.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,451.40 : 873,945.96 = 361,322.72 : x
  2. Step 2: Convert to fraction form
    633,451.40/873,945.96 = 361,322.72/x
  3. Step 3: Cross multiply
    633,451.40x = 873,945.96 × 361,322.72
  4. Step 4: Simplify right side
    633,451.40x = 315,776,531,400.21
  5. Step 5: Solve for x
    x = 315,776,531,400.21/633,451.40
  6. Step 6: Final answer
    x = 498,501.59

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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.