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Finding the Fourth Proportional to 629,681.16, 868,960.66 and 343,201.48

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Solution

The fourth proportional to 629,681.16, 868,960.66 and 343,201.48 is: 473,618.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,681.16 : 868,960.66 = 343,201.48 : x
  2. Step 2: Convert to fraction form
    629,681.16/868,960.66 = 343,201.48/x
  3. Step 3: Cross multiply
    629,681.16x = 868,960.66 × 343,201.48
  4. Step 4: Simplify right side
    629,681.16x = 298,228,584,573.78
  5. Step 5: Solve for x
    x = 298,228,584,573.78/629,681.16
  6. Step 6: Final answer
    x = 473,618.40

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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.