Home / 712,013.28-982,575.68-385,325.60

Finding the Fourth Proportional to 712,013.28, 982,575.68 and 385,325.60

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Solution

The fourth proportional to 712,013.28, 982,575.68 and 385,325.60 is: 531,747.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,013.28 : 982,575.68 = 385,325.60 : x
  2. Step 2: Convert to fraction form
    712,013.28/982,575.68 = 385,325.60/x
  3. Step 3: Cross multiply
    712,013.28x = 982,575.68 × 385,325.60
  4. Step 4: Simplify right side
    712,013.28x = 378,611,563,441.41
  5. Step 5: Solve for x
    x = 378,611,563,441.41/712,013.28
  6. Step 6: Final answer
    x = 531,747.90

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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.