Home / 684,272.75-944,279.64-378,341.07

Finding the Fourth Proportional to 684,272.75, 944,279.64 and 378,341.07

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Solution

The fourth proportional to 684,272.75, 944,279.64 and 378,341.07 is: 522,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,272.75 : 944,279.64 = 378,341.07 : x
  2. Step 2: Convert to fraction form
    684,272.75/944,279.64 = 378,341.07/x
  3. Step 3: Cross multiply
    684,272.75x = 944,279.64 × 378,341.07
  4. Step 4: Simplify right side
    684,272.75x = 357,259,769,376.82
  5. Step 5: Solve for x
    x = 357,259,769,376.82/684,272.75
  6. Step 6: Final answer
    x = 522,101.41

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Half scale
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Double scale
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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.