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Finding the Fourth Proportional to 629,646.89, 868,887.41 and 343,160.82

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Solution

The fourth proportional to 629,646.89, 868,887.41 and 343,160.82 is: 473,548.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,646.89 : 868,887.41 = 343,160.82 : x
  2. Step 2: Convert to fraction form
    629,646.89/868,887.41 = 343,160.82/x
  3. Step 3: Cross multiply
    629,646.89x = 868,887.41 × 343,160.82
  4. Step 4: Simplify right side
    629,646.89x = 298,168,114,387.47
  5. Step 5: Solve for x
    x = 298,168,114,387.47/629,646.89
  6. Step 6: Final answer
    x = 473,548.14

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1.5x scale

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.