Home / 1,296,417.57-1,788,891.18-723,481.89

Finding the Fourth Proportional to 1,296,417.57, 1,788,891.18 and 723,481.89

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Solution

The fourth proportional to 1,296,417.57, 1,788,891.18 and 723,481.89 is: 998,312.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,417.57 : 1,788,891.18 = 723,481.89 : x
  2. Step 2: Convert to fraction form
    1,296,417.57/1,788,891.18 = 723,481.89/x
  3. Step 3: Cross multiply
    1,296,417.57x = 1,788,891.18 × 723,481.89
  4. Step 4: Simplify right side
    1,296,417.57x = 1,294,230,371,910.73
  5. Step 5: Solve for x
    x = 1,294,230,371,910.73/1,296,417.57
  6. Step 6: Final answer
    x = 998,312.89

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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.