Home / 1,297,083.24-1,789,900.20-724,159.80

Finding the Fourth Proportional to 1,297,083.24, 1,789,900.20 and 724,159.80

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Solution

The fourth proportional to 1,297,083.24, 1,789,900.20 and 724,159.80 is: 999,298.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,083.24 : 1,789,900.20 = 724,159.80 : x
  2. Step 2: Convert to fraction form
    1,297,083.24/1,789,900.20 = 724,159.80/x
  3. Step 3: Cross multiply
    1,297,083.24x = 1,789,900.20 × 724,159.80
  4. Step 4: Simplify right side
    1,297,083.24x = 1,296,173,770,851.96
  5. Step 5: Solve for x
    x = 1,296,173,770,851.96/1,297,083.24
  6. Step 6: Final answer
    x = 999,298.84

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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.