Home / 629,757.18-869,032.12-357,787.33

Finding the Fourth Proportional to 629,757.18, 869,032.12 and 357,787.33

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Solution

The fourth proportional to 629,757.18, 869,032.12 and 357,787.33 is: 493,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,757.18 : 869,032.12 = 357,787.33 : x
  2. Step 2: Convert to fraction form
    629,757.18/869,032.12 = 357,787.33/x
  3. Step 3: Cross multiply
    629,757.18x = 869,032.12 × 357,787.33
  4. Step 4: Simplify right side
    629,757.18x = 310,928,681,899.04
  5. Step 5: Solve for x
    x = 310,928,681,899.04/629,757.18
  6. Step 6: Final answer
    x = 493,727.89

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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.