Home / 711,650.10-982,076.00-389,361.50

Finding the Fourth Proportional to 711,650.10, 982,076.00 and 389,361.50

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Solution

The fourth proportional to 711,650.10, 982,076.00 and 389,361.50 is: 537,318.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,650.10 : 982,076.00 = 389,361.50 : x
  2. Step 2: Convert to fraction form
    711,650.10/982,076.00 = 389,361.50/x
  3. Step 3: Cross multiply
    711,650.10x = 982,076.00 × 389,361.50
  4. Step 4: Simplify right side
    711,650.10x = 382,382,581,299.60
  5. Step 5: Solve for x
    x = 382,382,581,299.60/711,650.10
  6. Step 6: Final answer
    x = 537,318.24

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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.