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Finding the Fourth Proportional to 524,739.39, 786,850.29 and 221,078.10

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Solution

The fourth proportional to 524,739.39, 786,850.29 and 221,078.10 is: 331,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,739.39 : 786,850.29 = 221,078.10 : x
  2. Step 2: Convert to fraction form
    524,739.39/786,850.29 = 221,078.10/x
  3. Step 3: Cross multiply
    524,739.39x = 786,850.29 × 221,078.10
  4. Step 4: Simplify right side
    524,739.39x = 173,955,367,097.65
  5. Step 5: Solve for x
    x = 173,955,367,097.65/524,739.39
  6. Step 6: Final answer
    x = 331,508.12

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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.