Home / 812,331.94-1,218,666.03-243,690.07

Finding the Fourth Proportional to 812,331.94, 1,218,666.03 and 243,690.07

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Solution

The fourth proportional to 812,331.94, 1,218,666.03 and 243,690.07 is: 365,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,331.94 : 1,218,666.03 = 243,690.07 : x
  2. Step 2: Convert to fraction form
    812,331.94/1,218,666.03 = 243,690.07/x
  3. Step 3: Cross multiply
    812,331.94x = 1,218,666.03 × 243,690.07
  4. Step 4: Simplify right side
    812,331.94x = 296,976,807,110.66
  5. Step 5: Solve for x
    x = 296,976,807,110.66/812,331.94
  6. Step 6: Final answer
    x = 365,585.54

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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.