Home / 792,939.72-1,189,642.86-319,381.32

Finding the Fourth Proportional to 792,939.72, 1,189,642.86 and 319,381.32

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Solution

The fourth proportional to 792,939.72, 1,189,642.86 and 319,381.32 is: 479,165.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,939.72 : 1,189,642.86 = 319,381.32 : x
  2. Step 2: Convert to fraction form
    792,939.72/1,189,642.86 = 319,381.32/x
  3. Step 3: Cross multiply
    792,939.72x = 1,189,642.86 × 319,381.32
  4. Step 4: Simplify right side
    792,939.72x = 379,949,706,955.38
  5. Step 5: Solve for x
    x = 379,949,706,955.38/792,939.72
  6. Step 6: Final answer
    x = 479,165.94

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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.