Home / 724,922.94-1,086,785.73-319,826.46

Finding the Fourth Proportional to 724,922.94, 1,086,785.73 and 319,826.46

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Solution

The fourth proportional to 724,922.94, 1,086,785.73 and 319,826.46 is: 479,475.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,922.94 : 1,086,785.73 = 319,826.46 : x
  2. Step 2: Convert to fraction form
    724,922.94/1,086,785.73 = 319,826.46/x
  3. Step 3: Cross multiply
    724,922.94x = 1,086,785.73 × 319,826.46
  4. Step 4: Simplify right side
    724,922.94x = 347,582,832,804.42
  5. Step 5: Solve for x
    x = 347,582,832,804.42/724,922.94
  6. Step 6: Final answer
    x = 479,475.56

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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.