Home / 903,979.31-1,355,930.07-272,874.29

Finding the Fourth Proportional to 903,979.31, 1,355,930.07 and 272,874.29

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Solution

The fourth proportional to 903,979.31, 1,355,930.07 and 272,874.29 is: 409,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,979.31 : 1,355,930.07 = 272,874.29 : x
  2. Step 2: Convert to fraction form
    903,979.31/1,355,930.07 = 272,874.29/x
  3. Step 3: Cross multiply
    903,979.31x = 1,355,930.07 × 272,874.29
  4. Step 4: Simplify right side
    903,979.31x = 369,998,448,361.25
  5. Step 5: Solve for x
    x = 369,998,448,361.25/903,979.31
  6. Step 6: Final answer
    x = 409,299.69

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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.