Home / 940,863.53-1,298,388.29-511,139.90

Finding the Fourth Proportional to 940,863.53, 1,298,388.29 and 511,139.90

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Solution

The fourth proportional to 940,863.53, 1,298,388.29 and 511,139.90 is: 705,371.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,863.53 : 1,298,388.29 = 511,139.90 : x
  2. Step 2: Convert to fraction form
    940,863.53/1,298,388.29 = 511,139.90/x
  3. Step 3: Cross multiply
    940,863.53x = 1,298,388.29 × 511,139.90
  4. Step 4: Simplify right side
    940,863.53x = 663,658,061,402.04
  5. Step 5: Solve for x
    x = 663,658,061,402.04/940,863.53
  6. Step 6: Final answer
    x = 705,371.22

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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.