Home / 1,218,389.48-1,827,780.06-419,474.60

Finding the Fourth Proportional to 1,218,389.48, 1,827,780.06 and 419,474.60

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Solution

The fourth proportional to 1,218,389.48, 1,827,780.06 and 419,474.60 is: 629,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,389.48 : 1,827,780.06 = 419,474.60 : x
  2. Step 2: Convert to fraction form
    1,218,389.48/1,827,780.06 = 419,474.60/x
  3. Step 3: Cross multiply
    1,218,389.48x = 1,827,780.06 × 419,474.60
  4. Step 4: Simplify right side
    1,218,389.48x = 766,707,309,556.48
  5. Step 5: Solve for x
    x = 766,707,309,556.48/1,218,389.48
  6. Step 6: Final answer
    x = 629,279.32

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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.