Home / 629,757.41-869,032.42-357,787.55

Finding the Fourth Proportional to 629,757.41, 869,032.42 and 357,787.55

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Solution

The fourth proportional to 629,757.41, 869,032.42 and 357,787.55 is: 493,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,757.41 : 869,032.42 = 357,787.55 : x
  2. Step 2: Convert to fraction form
    629,757.41/869,032.42 = 357,787.55/x
  3. Step 3: Cross multiply
    629,757.41x = 869,032.42 × 357,787.55
  4. Step 4: Simplify right side
    629,757.41x = 310,928,981,700.48
  5. Step 5: Solve for x
    x = 310,928,981,700.48/629,757.41
  6. Step 6: Final answer
    x = 493,728.19

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1.5x scale

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.