Home / 779,342.28-1,169,350.19-419,092.07

Finding the Fourth Proportional to 779,342.28, 1,169,350.19 and 419,092.07

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Solution

The fourth proportional to 779,342.28, 1,169,350.19 and 419,092.07 is: 628,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,342.28 : 1,169,350.19 = 419,092.07 : x
  2. Step 2: Convert to fraction form
    779,342.28/1,169,350.19 = 419,092.07/x
  3. Step 3: Cross multiply
    779,342.28x = 1,169,350.19 × 419,092.07
  4. Step 4: Simplify right side
    779,342.28x = 490,065,383,739.78
  5. Step 5: Solve for x
    x = 490,065,383,739.78/779,342.28
  6. Step 6: Final answer
    x = 628,819.20

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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.