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Finding the Fourth Proportional to 629,635.60, 944,683.80 and 255,696.40

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Solution

The fourth proportional to 629,635.60, 944,683.80 and 255,696.40 is: 383,638.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,635.60 : 944,683.80 = 255,696.40 : x
  2. Step 2: Convert to fraction form
    629,635.60/944,683.80 = 255,696.40/x
  3. Step 3: Cross multiply
    629,635.60x = 944,683.80 × 255,696.40
  4. Step 4: Simplify right side
    629,635.60x = 241,552,246,798.32
  5. Step 5: Solve for x
    x = 241,552,246,798.32/629,635.60
  6. Step 6: Final answer
    x = 383,638.17

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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.