Home / 749,240.78-1,124,144.32-449,930.04

Finding the Fourth Proportional to 749,240.78, 1,124,144.32 and 449,930.04

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Solution

The fourth proportional to 749,240.78, 1,124,144.32 and 449,930.04 is: 675,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,240.78 : 1,124,144.32 = 449,930.04 : x
  2. Step 2: Convert to fraction form
    749,240.78/1,124,144.32 = 449,930.04/x
  3. Step 3: Cross multiply
    749,240.78x = 1,124,144.32 × 449,930.04
  4. Step 4: Simplify right side
    749,240.78x = 505,786,298,863.37
  5. Step 5: Solve for x
    x = 505,786,298,863.37/749,240.78
  6. Step 6: Final answer
    x = 675,065.10

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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.