Home / 931,175.85-1,396,468.53-398,553.87

Finding the Fourth Proportional to 931,175.85, 1,396,468.53 and 398,553.87

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Solution

The fourth proportional to 931,175.85, 1,396,468.53 and 398,553.87 is: 597,704.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,175.85 : 1,396,468.53 = 398,553.87 : x
  2. Step 2: Convert to fraction form
    931,175.85/1,396,468.53 = 398,553.87/x
  3. Step 3: Cross multiply
    931,175.85x = 1,396,468.53 × 398,553.87
  4. Step 4: Simplify right side
    931,175.85x = 556,567,933,225.40
  5. Step 5: Solve for x
    x = 556,567,933,225.40/931,175.85
  6. Step 6: Final answer
    x = 597,704.43

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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.