Home / 763,961.32-1,054,266.39-419,819.44

Finding the Fourth Proportional to 763,961.32, 1,054,266.39 and 419,819.44

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Solution

The fourth proportional to 763,961.32, 1,054,266.39 and 419,819.44 is: 579,350.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,961.32 : 1,054,266.39 = 419,819.44 : x
  2. Step 2: Convert to fraction form
    763,961.32/1,054,266.39 = 419,819.44/x
  3. Step 3: Cross multiply
    763,961.32x = 1,054,266.39 × 419,819.44
  4. Step 4: Simplify right side
    763,961.32x = 442,601,525,460.62
  5. Step 5: Solve for x
    x = 442,601,525,460.62/763,961.32
  6. Step 6: Final answer
    x = 579,350.70

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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.