Home / 689,954.92-951,734.23-448,398.38

Finding the Fourth Proportional to 689,954.92, 951,734.23 and 448,398.38

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Solution

The fourth proportional to 689,954.92, 951,734.23 and 448,398.38 is: 618,527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,954.92 : 951,734.23 = 448,398.38 : x
  2. Step 2: Convert to fraction form
    689,954.92/951,734.23 = 448,398.38/x
  3. Step 3: Cross multiply
    689,954.92x = 951,734.23 × 448,398.38
  4. Step 4: Simplify right side
    689,954.92x = 426,756,082,301.22
  5. Step 5: Solve for x
    x = 426,756,082,301.22/689,954.92
  6. Step 6: Final answer
    x = 618,527.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.