Home / 814,721.12-1,222,009.88-365,321.37

Finding the Fourth Proportional to 814,721.12, 1,222,009.88 and 365,321.37

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Solution

The fourth proportional to 814,721.12, 1,222,009.88 and 365,321.37 is: 547,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,721.12 : 1,222,009.88 = 365,321.37 : x
  2. Step 2: Convert to fraction form
    814,721.12/1,222,009.88 = 365,321.37/x
  3. Step 3: Cross multiply
    814,721.12x = 1,222,009.88 × 365,321.37
  4. Step 4: Simplify right side
    814,721.12x = 446,426,323,515.14
  5. Step 5: Solve for x
    x = 446,426,323,515.14/814,721.12
  6. Step 6: Final answer
    x = 547,949.86

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1.5x scale

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.