Home / 792,662.16-1,189,213.68-319,236.72

Finding the Fourth Proportional to 792,662.16, 1,189,213.68 and 319,236.72

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Solution

The fourth proportional to 792,662.16, 1,189,213.68 and 319,236.72 is: 478,943.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,662.16 : 1,189,213.68 = 319,236.72 : x
  2. Step 2: Convert to fraction form
    792,662.16/1,189,213.68 = 319,236.72/x
  3. Step 3: Cross multiply
    792,662.16x = 1,189,213.68 × 319,236.72
  4. Step 4: Simplify right side
    792,662.16x = 379,640,674,582.33
  5. Step 5: Solve for x
    x = 379,640,674,582.33/792,662.16
  6. Step 6: Final answer
    x = 478,943.86

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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.