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Finding the Fourth Proportional to 629,232.80, 943,484.68 and 429,794.20

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Solution

The fourth proportional to 629,232.80, 943,484.68 and 429,794.20 is: 644,442.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,232.80 : 943,484.68 = 429,794.20 : x
  2. Step 2: Convert to fraction form
    629,232.80/943,484.68 = 429,794.20/x
  3. Step 3: Cross multiply
    629,232.80x = 943,484.68 × 429,794.20
  4. Step 4: Simplify right side
    629,232.80x = 405,504,243,252.86
  5. Step 5: Solve for x
    x = 405,504,243,252.86/629,232.80
  6. Step 6: Final answer
    x = 644,442.32

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1.5x scale

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.