Home / 792,209.70-1,188,664.47-319,817.70

Finding the Fourth Proportional to 792,209.70, 1,188,664.47 and 319,817.70

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Solution

The fourth proportional to 792,209.70, 1,188,664.47 and 319,817.70 is: 479,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,209.70 : 1,188,664.47 = 319,817.70 : x
  2. Step 2: Convert to fraction form
    792,209.70/1,188,664.47 = 319,817.70/x
  3. Step 3: Cross multiply
    792,209.70x = 1,188,664.47 × 319,817.70
  4. Step 4: Simplify right side
    792,209.70x = 380,155,936,867.12
  5. Step 5: Solve for x
    x = 380,155,936,867.12/792,209.70
  6. Step 6: Final answer
    x = 479,867.81

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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.