Home / 430,745.27-646,080.94-262,221.86

Finding the Fourth Proportional to 430,745.27, 646,080.94 and 262,221.86

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Solution

The fourth proportional to 430,745.27, 646,080.94 and 262,221.86 is: 393,310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,745.27 : 646,080.94 = 262,221.86 : x
  2. Step 2: Convert to fraction form
    430,745.27/646,080.94 = 262,221.86/x
  3. Step 3: Cross multiply
    430,745.27x = 646,080.94 × 262,221.86
  4. Step 4: Simplify right side
    430,745.27x = 169,416,541,911.39
  5. Step 5: Solve for x
    x = 169,416,541,911.39/430,745.27
  6. Step 6: Final answer
    x = 393,310.28

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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.