Home / 689,738.43-1,034,651.37-216,442.47

Finding the Fourth Proportional to 689,738.43, 1,034,651.37 and 216,442.47

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Solution

The fourth proportional to 689,738.43, 1,034,651.37 and 216,442.47 is: 324,677.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,738.43 : 1,034,651.37 = 216,442.47 : x
  2. Step 2: Convert to fraction form
    689,738.43/1,034,651.37 = 216,442.47/x
  3. Step 3: Cross multiply
    689,738.43x = 1,034,651.37 × 216,442.47
  4. Step 4: Simplify right side
    689,738.43x = 223,942,492,938.43
  5. Step 5: Solve for x
    x = 223,942,492,938.43/689,738.43
  6. Step 6: Final answer
    x = 324,677.42

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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.