Home / 728,334.10-1,092,511.23-279,077.68

Finding the Fourth Proportional to 728,334.10, 1,092,511.23 and 279,077.68

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Solution

The fourth proportional to 728,334.10, 1,092,511.23 and 279,077.68 is: 418,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,334.10 : 1,092,511.23 = 279,077.68 : x
  2. Step 2: Convert to fraction form
    728,334.10/1,092,511.23 = 279,077.68/x
  3. Step 3: Cross multiply
    728,334.10x = 1,092,511.23 × 279,077.68
  4. Step 4: Simplify right side
    728,334.10x = 304,895,499,442.35
  5. Step 5: Solve for x
    x = 304,895,499,442.35/728,334.10
  6. Step 6: Final answer
    x = 418,620.38

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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.