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Finding the Fourth Proportional to 629,247.54, 943,506.80 and 429,808.94

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Solution

The fourth proportional to 629,247.54, 943,506.80 and 429,808.94 is: 644,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,247.54 : 943,506.80 = 429,808.94 : x
  2. Step 2: Convert to fraction form
    629,247.54/943,506.80 = 429,808.94/x
  3. Step 3: Cross multiply
    629,247.54x = 943,506.80 × 429,808.94
  4. Step 4: Simplify right side
    629,247.54x = 405,527,657,590.79
  5. Step 5: Solve for x
    x = 405,527,657,590.79/629,247.54
  6. Step 6: Final answer
    x = 644,464.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.