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Finding the Fourth Proportional to 629,064.90, 868,119.99 and 342,590.58

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Solution

The fourth proportional to 629,064.90, 868,119.99 and 342,590.58 is: 472,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,064.90 : 868,119.99 = 342,590.58 : x
  2. Step 2: Convert to fraction form
    629,064.90/868,119.99 = 342,590.58/x
  3. Step 3: Cross multiply
    629,064.90x = 868,119.99 × 342,590.58
  4. Step 4: Simplify right side
    629,064.90x = 297,409,730,883.69
  5. Step 5: Solve for x
    x = 297,409,730,883.69/629,064.90
  6. Step 6: Final answer
    x = 472,780.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.