Home / 684,221.88-944,188.07-378,280.44

Finding the Fourth Proportional to 684,221.88, 944,188.07 and 378,280.44

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Solution

The fourth proportional to 684,221.88, 944,188.07 and 378,280.44 is: 522,005.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,221.88 : 944,188.07 = 378,280.44 : x
  2. Step 2: Convert to fraction form
    684,221.88/944,188.07 = 378,280.44/x
  3. Step 3: Cross multiply
    684,221.88x = 944,188.07 × 378,280.44
  4. Step 4: Simplify right side
    684,221.88x = 357,167,876,670.95
  5. Step 5: Solve for x
    x = 357,167,876,670.95/684,221.88
  6. Step 6: Final answer
    x = 522,005.93

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.