Home / 1,998,733.21-2,998,309.83-651,000.76

Finding the Fourth Proportional to 1,998,733.21, 2,998,309.83 and 651,000.76

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Solution

The fourth proportional to 1,998,733.21, 2,998,309.83 and 651,000.76 is: 976,569.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,733.21 : 2,998,309.83 = 651,000.76 : x
  2. Step 2: Convert to fraction form
    1,998,733.21/2,998,309.83 = 651,000.76/x
  3. Step 3: Cross multiply
    1,998,733.21x = 2,998,309.83 × 651,000.76
  4. Step 4: Simplify right side
    1,998,733.21x = 1,951,901,978,045.47
  5. Step 5: Solve for x
    x = 1,951,901,978,045.47/1,998,733.21
  6. Step 6: Final answer
    x = 976,569.54

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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.