Home / 1,455,545.80-2,183,610.30-1,220,516.20

Finding the Fourth Proportional to 1,455,545.80, 2,183,610.30 and 1,220,516.20

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Solution

The fourth proportional to 1,455,545.80, 2,183,610.30 and 1,220,516.20 is: 1,831,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,545.80 : 2,183,610.30 = 1,220,516.20 : x
  2. Step 2: Convert to fraction form
    1,455,545.80/2,183,610.30 = 1,220,516.20/x
  3. Step 3: Cross multiply
    1,455,545.80x = 2,183,610.30 × 1,220,516.20
  4. Step 4: Simplify right side
    1,455,545.80x = 2,665,131,745,636.86
  5. Step 5: Solve for x
    x = 2,665,131,745,636.86/1,455,545.80
  6. Step 6: Final answer
    x = 1,831,018.81

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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.