Home / 711,813.21-982,302.32-389,523.33

Finding the Fourth Proportional to 711,813.21, 982,302.32 and 389,523.33

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Solution

The fourth proportional to 711,813.21, 982,302.32 and 389,523.33 is: 537,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,813.21 : 982,302.32 = 389,523.33 : x
  2. Step 2: Convert to fraction form
    711,813.21/982,302.32 = 389,523.33/x
  3. Step 3: Cross multiply
    711,813.21x = 982,302.32 × 389,523.33
  4. Step 4: Simplify right side
    711,813.21x = 382,629,670,753.13
  5. Step 5: Solve for x
    x = 382,629,670,753.13/711,813.21
  6. Step 6: Final answer
    x = 537,542.24

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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.