Home / 728,230.88-1,092,841.68-446,889.44

Finding the Fourth Proportional to 728,230.88, 1,092,841.68 and 446,889.44

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Solution

The fourth proportional to 728,230.88, 1,092,841.68 and 446,889.44 is: 670,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,230.88 : 1,092,841.68 = 446,889.44 : x
  2. Step 2: Convert to fraction form
    728,230.88/1,092,841.68 = 446,889.44/x
  3. Step 3: Cross multiply
    728,230.88x = 1,092,841.68 × 446,889.44
  4. Step 4: Simplify right side
    728,230.88x = 488,379,406,383.86
  5. Step 5: Solve for x
    x = 488,379,406,383.86/728,230.88
  6. Step 6: Final answer
    x = 670,638.14

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1.5x scale

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.