Home / 1,028,976.96-1,543,523.76-319,105.92

Finding the Fourth Proportional to 1,028,976.96, 1,543,523.76 and 319,105.92

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Solution

The fourth proportional to 1,028,976.96, 1,543,523.76 and 319,105.92 is: 478,676.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,976.96 : 1,543,523.76 = 319,105.92 : x
  2. Step 2: Convert to fraction form
    1,028,976.96/1,543,523.76 = 319,105.92/x
  3. Step 3: Cross multiply
    1,028,976.96x = 1,543,523.76 × 319,105.92
  4. Step 4: Simplify right side
    1,028,976.96x = 492,547,569,476.66
  5. Step 5: Solve for x
    x = 492,547,569,476.66/1,028,976.96
  6. Step 6: Final answer
    x = 478,676.97

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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.