Home / 629,311.02-868,455.17-357,384.57

Finding the Fourth Proportional to 629,311.02, 868,455.17 and 357,384.57

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Solution

The fourth proportional to 629,311.02, 868,455.17 and 357,384.57 is: 493,194.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,311.02 : 868,455.17 = 357,384.57 : x
  2. Step 2: Convert to fraction form
    629,311.02/868,455.17 = 357,384.57/x
  3. Step 3: Cross multiply
    629,311.02x = 868,455.17 × 357,384.57
  4. Step 4: Simplify right side
    629,311.02x = 310,372,477,494.73
  5. Step 5: Solve for x
    x = 310,372,477,494.73/629,311.02
  6. Step 6: Final answer
    x = 493,194.09

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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.