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Finding the Fourth Proportional to 629,525.52, 868,745.25 and 343,045.53

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Solution

The fourth proportional to 629,525.52, 868,745.25 and 343,045.53 is: 473,402.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,525.52 : 868,745.25 = 343,045.53 : x
  2. Step 2: Convert to fraction form
    629,525.52/868,745.25 = 343,045.53/x
  3. Step 3: Cross multiply
    629,525.52x = 868,745.25 × 343,045.53
  4. Step 4: Simplify right side
    629,525.52x = 298,019,174,721.23
  5. Step 5: Solve for x
    x = 298,019,174,721.23/629,525.52
  6. Step 6: Final answer
    x = 473,402.85

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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.