Home / 1,212,305.80-1,819,560.30-613,683.40

Finding the Fourth Proportional to 1,212,305.80, 1,819,560.30 and 613,683.40

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Solution

The fourth proportional to 1,212,305.80, 1,819,560.30 and 613,683.40 is: 921,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,305.80 : 1,819,560.30 = 613,683.40 : x
  2. Step 2: Convert to fraction form
    1,212,305.80/1,819,560.30 = 613,683.40/x
  3. Step 3: Cross multiply
    1,212,305.80x = 1,819,560.30 × 613,683.40
  4. Step 4: Simplify right side
    1,212,305.80x = 1,116,633,951,409.02
  5. Step 5: Solve for x
    x = 1,116,633,951,409.02/1,212,305.80
  6. Step 6: Final answer
    x = 921,082.74

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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.