Home / 711,808.27-982,295.50-389,518.43

Finding the Fourth Proportional to 711,808.27, 982,295.50 and 389,518.43

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Solution

The fourth proportional to 711,808.27, 982,295.50 and 389,518.43 is: 537,535.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,808.27 : 982,295.50 = 389,518.43 : x
  2. Step 2: Convert to fraction form
    711,808.27/982,295.50 = 389,518.43/x
  3. Step 3: Cross multiply
    711,808.27x = 982,295.50 × 389,518.43
  4. Step 4: Simplify right side
    711,808.27x = 382,622,202,438.01
  5. Step 5: Solve for x
    x = 382,622,202,438.01/711,808.27
  6. Step 6: Final answer
    x = 537,535.49

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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.