Home / 982,989.49-1,474,839.21-343,387.72

Finding the Fourth Proportional to 982,989.49, 1,474,839.21 and 343,387.72

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Solution

The fourth proportional to 982,989.49, 1,474,839.21 and 343,387.72 is: 515,205.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,989.49 : 1,474,839.21 = 343,387.72 : x
  2. Step 2: Convert to fraction form
    982,989.49/1,474,839.21 = 343,387.72/x
  3. Step 3: Cross multiply
    982,989.49x = 1,474,839.21 × 343,387.72
  4. Step 4: Simplify right side
    982,989.49x = 506,441,673,688.50
  5. Step 5: Solve for x
    x = 506,441,673,688.50/982,989.49
  6. Step 6: Final answer
    x = 515,205.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.