Home / 1,296,265.40-1,788,844.85-723,305.61

Finding the Fourth Proportional to 1,296,265.40, 1,788,844.85 and 723,305.61

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Solution

The fourth proportional to 1,296,265.40, 1,788,844.85 and 723,305.61 is: 998,160.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,265.40 : 1,788,844.85 = 723,305.61 : x
  2. Step 2: Convert to fraction form
    1,296,265.40/1,788,844.85 = 723,305.61/x
  3. Step 3: Cross multiply
    1,296,265.40x = 1,788,844.85 × 723,305.61
  4. Step 4: Simplify right side
    1,296,265.40x = 1,293,881,511,808.08
  5. Step 5: Solve for x
    x = 1,293,881,511,808.08/1,296,265.40
  6. Step 6: Final answer
    x = 998,160.96

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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.