Home / 491,460.35-678,237.10-276,614.33

Finding the Fourth Proportional to 491,460.35, 678,237.10 and 276,614.33

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Solution

The fourth proportional to 491,460.35, 678,237.10 and 276,614.33 is: 381,740.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,460.35 : 678,237.10 = 276,614.33 : x
  2. Step 2: Convert to fraction form
    491,460.35/678,237.10 = 276,614.33/x
  3. Step 3: Cross multiply
    491,460.35x = 678,237.10 × 276,614.33
  4. Step 4: Simplify right side
    491,460.35x = 187,610,096,914.92
  5. Step 5: Solve for x
    x = 187,610,096,914.92/491,460.35
  6. Step 6: Final answer
    x = 381,740.05

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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.