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Finding the Fourth Proportional to 629,937.56, 869,317.97 and 343,462.43

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Solution

The fourth proportional to 629,937.56, 869,317.97 and 343,462.43 is: 473,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,937.56 : 869,317.97 = 343,462.43 : x
  2. Step 2: Convert to fraction form
    629,937.56/869,317.97 = 343,462.43/x
  3. Step 3: Cross multiply
    629,937.56x = 869,317.97 × 343,462.43
  4. Step 4: Simplify right side
    629,937.56x = 298,578,056,354.97
  5. Step 5: Solve for x
    x = 298,578,056,354.97/629,937.56
  6. Step 6: Final answer
    x = 473,980.40

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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.