Home / 931,500.76-1,396,082.10-398,395

Finding the Fourth Proportional to 931,500.76, 1,396,082.10 and 398,395

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Solution

The fourth proportional to 931,500.76, 1,396,082.10 and 398,395 is: 597,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,500.76 : 1,396,082.10 = 398,395 : x
  2. Step 2: Convert to fraction form
    931,500.76/1,396,082.10 = 398,395/x
  3. Step 3: Cross multiply
    931,500.76x = 1,396,082.10 × 398,395
  4. Step 4: Simplify right side
    931,500.76x = 556,192,128,229.50
  5. Step 5: Solve for x
    x = 556,192,128,229.50/931,500.76
  6. Step 6: Final answer
    x = 597,092.51

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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.