Home / 1,211,912.29-1,817,671.54-572,214.79

Finding the Fourth Proportional to 1,211,912.29, 1,817,671.54 and 572,214.79

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Solution

The fourth proportional to 1,211,912.29, 1,817,671.54 and 572,214.79 is: 858,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,912.29 : 1,817,671.54 = 572,214.79 : x
  2. Step 2: Convert to fraction form
    1,211,912.29/1,817,671.54 = 572,214.79/x
  3. Step 3: Cross multiply
    1,211,912.29x = 1,817,671.54 × 572,214.79
  4. Step 4: Simplify right side
    1,211,912.29x = 1,040,098,538,550.08
  5. Step 5: Solve for x
    x = 1,040,098,538,550.08/1,211,912.29
  6. Step 6: Final answer
    x = 858,229.22

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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.