Home / 1,209,876.05-1,669,650.20-658,607.61

Finding the Fourth Proportional to 1,209,876.05, 1,669,650.20 and 658,607.61

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Solution

The fourth proportional to 1,209,876.05, 1,669,650.20 and 658,607.61 is: 908,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,876.05 : 1,669,650.20 = 658,607.61 : x
  2. Step 2: Convert to fraction form
    1,209,876.05/1,669,650.20 = 658,607.61/x
  3. Step 3: Cross multiply
    1,209,876.05x = 1,669,650.20 × 658,607.61
  4. Step 4: Simplify right side
    1,209,876.05x = 1,099,644,324,464.98
  5. Step 5: Solve for x
    x = 1,099,644,324,464.98/1,209,876.05
  6. Step 6: Final answer
    x = 908,890.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.