Home / 812,533.10-1,218,796.61-243,911.75

Finding the Fourth Proportional to 812,533.10, 1,218,796.61 and 243,911.75

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Solution

The fourth proportional to 812,533.10, 1,218,796.61 and 243,911.75 is: 365,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,533.10 : 1,218,796.61 = 243,911.75 : x
  2. Step 2: Convert to fraction form
    812,533.10/1,218,796.61 = 243,911.75/x
  3. Step 3: Cross multiply
    812,533.10x = 1,218,796.61 × 243,911.75
  4. Step 4: Simplify right side
    812,533.10x = 297,278,806,725.63
  5. Step 5: Solve for x
    x = 297,278,806,725.63/812,533.10
  6. Step 6: Final answer
    x = 365,866.71

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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.