Home / 693,142.88-1,040,103.12-377,621.96

Finding the Fourth Proportional to 693,142.88, 1,040,103.12 and 377,621.96

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Solution

The fourth proportional to 693,142.88, 1,040,103.12 and 377,621.96 is: 566,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,142.88 : 1,040,103.12 = 377,621.96 : x
  2. Step 2: Convert to fraction form
    693,142.88/1,040,103.12 = 377,621.96/x
  3. Step 3: Cross multiply
    693,142.88x = 1,040,103.12 × 377,621.96
  4. Step 4: Simplify right side
    693,142.88x = 392,765,778,776.52
  5. Step 5: Solve for x
    x = 392,765,778,776.52/693,142.88
  6. Step 6: Final answer
    x = 566,644.76

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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.