Home / 812,519.48-1,218,777.74-243,900.02

Finding the Fourth Proportional to 812,519.48, 1,218,777.74 and 243,900.02

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Solution

The fourth proportional to 812,519.48, 1,218,777.74 and 243,900.02 is: 365,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,519.48 : 1,218,777.74 = 243,900.02 : x
  2. Step 2: Convert to fraction form
    812,519.48/1,218,777.74 = 243,900.02/x
  3. Step 3: Cross multiply
    812,519.48x = 1,218,777.74 × 243,900.02
  4. Step 4: Simplify right side
    812,519.48x = 297,259,915,161.56
  5. Step 5: Solve for x
    x = 297,259,915,161.56/812,519.48
  6. Step 6: Final answer
    x = 365,849.59

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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.