Home / 801,216.37-1,105,678.92-438,663.70

Finding the Fourth Proportional to 801,216.37, 1,105,678.92 and 438,663.70

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Solution

The fourth proportional to 801,216.37, 1,105,678.92 and 438,663.70 is: 605,356.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,216.37 : 1,105,678.92 = 438,663.70 : x
  2. Step 2: Convert to fraction form
    801,216.37/1,105,678.92 = 438,663.70/x
  3. Step 3: Cross multiply
    801,216.37x = 1,105,678.92 × 438,663.70
  4. Step 4: Simplify right side
    801,216.37x = 485,021,206,059.20
  5. Step 5: Solve for x
    x = 485,021,206,059.20/801,216.37
  6. Step 6: Final answer
    x = 605,356.09

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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.