Home / 711,650.36-982,076.34-389,361.75

Finding the Fourth Proportional to 711,650.36, 982,076.34 and 389,361.75

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Solution

The fourth proportional to 711,650.36, 982,076.34 and 389,361.75 is: 537,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,650.36 : 982,076.34 = 389,361.75 : x
  2. Step 2: Convert to fraction form
    711,650.36/982,076.34 = 389,361.75/x
  3. Step 3: Cross multiply
    711,650.36x = 982,076.34 × 389,361.75
  4. Step 4: Simplify right side
    711,650.36x = 382,382,962,376.00
  5. Step 5: Solve for x
    x = 382,382,962,376.00/711,650.36
  6. Step 6: Final answer
    x = 537,318.59

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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.