Home / 1,998,066.86-2,755,491.90-1,309,487.93

Finding the Fourth Proportional to 1,998,066.86, 2,755,491.90 and 1,309,487.93

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Solution

The fourth proportional to 1,998,066.86, 2,755,491.90 and 1,309,487.93 is: 1,805,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,066.86 : 2,755,491.90 = 1,309,487.93 : x
  2. Step 2: Convert to fraction form
    1,998,066.86/2,755,491.90 = 1,309,487.93/x
  3. Step 3: Cross multiply
    1,998,066.86x = 2,755,491.90 × 1,309,487.93
  4. Step 4: Simplify right side
    1,998,066.86x = 3,608,283,384,262.77
  5. Step 5: Solve for x
    x = 3,608,283,384,262.77/1,998,066.86
  6. Step 6: Final answer
    x = 1,805,887.21

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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.