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Finding the Fourth Proportional to 629,301.77, 868,442.40 and 357,375.32

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Solution

The fourth proportional to 629,301.77, 868,442.40 and 357,375.32 is: 493,181.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,301.77 : 868,442.40 = 357,375.32 : x
  2. Step 2: Convert to fraction form
    629,301.77/868,442.40 = 357,375.32/x
  3. Step 3: Cross multiply
    629,301.77x = 868,442.40 × 357,375.32
  4. Step 4: Simplify right side
    629,301.77x = 310,359,880,601.57
  5. Step 5: Solve for x
    x = 310,359,880,601.57/629,301.77
  6. Step 6: Final answer
    x = 493,181.32

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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.