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Finding the Fourth Proportional to 629,663.37, 868,953.65 and 343,202.01

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Solution

The fourth proportional to 629,663.37, 868,953.65 and 343,202.01 is: 473,628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,663.37 : 868,953.65 = 343,202.01 : x
  2. Step 2: Convert to fraction form
    629,663.37/868,953.65 = 343,202.01/x
  3. Step 3: Cross multiply
    629,663.37x = 868,953.65 × 343,202.01
  4. Step 4: Simplify right side
    629,663.37x = 298,226,639,276.84
  5. Step 5: Solve for x
    x = 298,226,639,276.84/629,663.37
  6. Step 6: Final answer
    x = 473,628.69

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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.