Home / 382,811.82-574,304.24-126,643.79

Finding the Fourth Proportional to 382,811.82, 574,304.24 and 126,643.79

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Solution

The fourth proportional to 382,811.82, 574,304.24 and 126,643.79 is: 189,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,811.82 : 574,304.24 = 126,643.79 : x
  2. Step 2: Convert to fraction form
    382,811.82/574,304.24 = 126,643.79/x
  3. Step 3: Cross multiply
    382,811.82x = 574,304.24 × 126,643.79
  4. Step 4: Simplify right side
    382,811.82x = 72,732,065,703.81
  5. Step 5: Solve for x
    x = 72,732,065,703.81/382,811.82
  6. Step 6: Final answer
    x = 189,994.30

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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.