Home / 824,478.30-1,235,997.45-319,383.90

Finding the Fourth Proportional to 824,478.30, 1,235,997.45 and 319,383.90

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Solution

The fourth proportional to 824,478.30, 1,235,997.45 and 319,383.90 is: 478,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,478.30 : 1,235,997.45 = 319,383.90 : x
  2. Step 2: Convert to fraction form
    824,478.30/1,235,997.45 = 319,383.90/x
  3. Step 3: Cross multiply
    824,478.30x = 1,235,997.45 × 319,383.90
  4. Step 4: Simplify right side
    824,478.30x = 394,757,685,971.06
  5. Step 5: Solve for x
    x = 394,757,685,971.06/824,478.30
  6. Step 6: Final answer
    x = 478,796.94

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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.