Home / 1,297,215.84-1,790,082.64-724,292.30

Finding the Fourth Proportional to 1,297,215.84, 1,790,082.64 and 724,292.30

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Solution

The fourth proportional to 1,297,215.84, 1,790,082.64 and 724,292.30 is: 999,481.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,215.84 : 1,790,082.64 = 724,292.30 : x
  2. Step 2: Convert to fraction form
    1,297,215.84/1,790,082.64 = 724,292.30/x
  3. Step 3: Cross multiply
    1,297,215.84x = 1,790,082.64 × 724,292.30
  4. Step 4: Simplify right side
    1,297,215.84x = 1,296,543,072,515.67
  5. Step 5: Solve for x
    x = 1,296,543,072,515.67/1,297,215.84
  6. Step 6: Final answer
    x = 999,481.38

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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.