Home / 814,997.70-1,222,496.55-515,816.10

Finding the Fourth Proportional to 814,997.70, 1,222,496.55 and 515,816.10

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Solution

The fourth proportional to 814,997.70, 1,222,496.55 and 515,816.10 is: 773,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,997.70 : 1,222,496.55 = 515,816.10 : x
  2. Step 2: Convert to fraction form
    814,997.70/1,222,496.55 = 515,816.10/x
  3. Step 3: Cross multiply
    814,997.70x = 1,222,496.55 × 515,816.10
  4. Step 4: Simplify right side
    814,997.70x = 630,583,402,684.46
  5. Step 5: Solve for x
    x = 630,583,402,684.46/814,997.70
  6. Step 6: Final answer
    x = 773,724.15

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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.