Home / 712,196.28-982,801.26-389,898.36

Finding the Fourth Proportional to 712,196.28, 982,801.26 and 389,898.36

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Solution

The fourth proportional to 712,196.28, 982,801.26 and 389,898.36 is: 538,043.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,196.28 : 982,801.26 = 389,898.36 : x
  2. Step 2: Convert to fraction form
    712,196.28/982,801.26 = 389,898.36/x
  3. Step 3: Cross multiply
    712,196.28x = 982,801.26 × 389,898.36
  4. Step 4: Simplify right side
    712,196.28x = 383,192,599,479.93
  5. Step 5: Solve for x
    x = 383,192,599,479.93/712,196.28
  6. Step 6: Final answer
    x = 538,043.53

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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.