Home / 644,576.20-967,010.10-378,199.60

Finding the Fourth Proportional to 644,576.20, 967,010.10 and 378,199.60

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Solution

The fourth proportional to 644,576.20, 967,010.10 and 378,199.60 is: 567,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,576.20 : 967,010.10 = 378,199.60 : x
  2. Step 2: Convert to fraction form
    644,576.20/967,010.10 = 378,199.60/x
  3. Step 3: Cross multiply
    644,576.20x = 967,010.10 × 378,199.60
  4. Step 4: Simplify right side
    644,576.20x = 365,722,833,015.96
  5. Step 5: Solve for x
    x = 365,722,833,015.96/644,576.20
  6. Step 6: Final answer
    x = 567,384.95

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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.