Home / 812,246.80-1,218,485.40-251,222.80

Finding the Fourth Proportional to 812,246.80, 1,218,485.40 and 251,222.80

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Solution

The fourth proportional to 812,246.80, 1,218,485.40 and 251,222.80 is: 376,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,246.80 : 1,218,485.40 = 251,222.80 : x
  2. Step 2: Convert to fraction form
    812,246.80/1,218,485.40 = 251,222.80/x
  3. Step 3: Cross multiply
    812,246.80x = 1,218,485.40 × 251,222.80
  4. Step 4: Simplify right side
    812,246.80x = 306,111,313,947.12
  5. Step 5: Solve for x
    x = 306,111,313,947.12/812,246.80
  6. Step 6: Final answer
    x = 376,869.83

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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.