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Finding the Fourth Proportional to 629,662.80, 868,954.95 and 357,725.76

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Solution

The fourth proportional to 629,662.80, 868,954.95 and 357,725.76 is: 493,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,662.80 : 868,954.95 = 357,725.76 : x
  2. Step 2: Convert to fraction form
    629,662.80/868,954.95 = 357,725.76/x
  3. Step 3: Cross multiply
    629,662.80x = 868,954.95 × 357,725.76
  4. Step 4: Simplify right side
    629,662.80x = 310,847,569,894.51
  5. Step 5: Solve for x
    x = 310,847,569,894.51/629,662.80
  6. Step 6: Final answer
    x = 493,673.07

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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.