Home / 818,828.67-1,228,243.01-319,842.75

Finding the Fourth Proportional to 818,828.67, 1,228,243.01 and 319,842.75

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Solution

The fourth proportional to 818,828.67, 1,228,243.01 and 319,842.75 is: 479,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,828.67 : 1,228,243.01 = 319,842.75 : x
  2. Step 2: Convert to fraction form
    818,828.67/1,228,243.01 = 319,842.75/x
  3. Step 3: Cross multiply
    818,828.67x = 1,228,243.01 × 319,842.75
  4. Step 4: Simplify right side
    818,828.67x = 392,844,620,387.46
  5. Step 5: Solve for x
    x = 392,844,620,387.46/818,828.67
  6. Step 6: Final answer
    x = 479,764.13

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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.