Home / 1,297,749.18-1,790,633.79-724,701.18

Finding the Fourth Proportional to 1,297,749.18, 1,790,633.79 and 724,701.18

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Solution

The fourth proportional to 1,297,749.18, 1,790,633.79 and 724,701.18 is: 999,942.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,749.18 : 1,790,633.79 = 724,701.18 : x
  2. Step 2: Convert to fraction form
    1,297,749.18/1,790,633.79 = 724,701.18/x
  3. Step 3: Cross multiply
    1,297,749.18x = 1,790,633.79 × 724,701.18
  4. Step 4: Simplify right side
    1,297,749.18x = 1,297,674,420,560.87
  5. Step 5: Solve for x
    x = 1,297,674,420,560.87/1,297,749.18
  6. Step 6: Final answer
    x = 999,942.39

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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.