Home / 1,296,998.64-1,789,828.38-724,092.12

Finding the Fourth Proportional to 1,296,998.64, 1,789,828.38 and 724,092.12

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Solution

The fourth proportional to 1,296,998.64, 1,789,828.38 and 724,092.12 is: 999,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,998.64 : 1,789,828.38 = 724,092.12 : x
  2. Step 2: Convert to fraction form
    1,296,998.64/1,789,828.38 = 724,092.12/x
  3. Step 3: Cross multiply
    1,296,998.64x = 1,789,828.38 × 724,092.12
  4. Step 4: Simplify right side
    1,296,998.64x = 1,296,000,626,110.37
  5. Step 5: Solve for x
    x = 1,296,000,626,110.37/1,296,998.64
  6. Step 6: Final answer
    x = 999,230.52

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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.