Home / 1,085,134.23-1,625,043.78-764,498.16

Finding the Fourth Proportional to 1,085,134.23, 1,625,043.78 and 764,498.16

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Solution

The fourth proportional to 1,085,134.23, 1,625,043.78 and 764,498.16 is: 1,144,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,134.23 : 1,625,043.78 = 764,498.16 : x
  2. Step 2: Convert to fraction form
    1,085,134.23/1,625,043.78 = 764,498.16/x
  3. Step 3: Cross multiply
    1,085,134.23x = 1,625,043.78 × 764,498.16
  4. Step 4: Simplify right side
    1,085,134.23x = 1,242,342,979,729.44
  5. Step 5: Solve for x
    x = 1,242,342,979,729.44/1,085,134.23
  6. Step 6: Final answer
    x = 1,144,874.93

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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.