Home / 1,297,746.30-1,790,712.99-724,713.42

Finding the Fourth Proportional to 1,297,746.30, 1,790,712.99 and 724,713.42

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Solution

The fourth proportional to 1,297,746.30, 1,790,712.99 and 724,713.42 is: 1,000,005.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,746.30 : 1,790,712.99 = 724,713.42 : x
  2. Step 2: Convert to fraction form
    1,297,746.30/1,790,712.99 = 724,713.42/x
  3. Step 3: Cross multiply
    1,297,746.30x = 1,790,712.99 × 724,713.42
  4. Step 4: Simplify right side
    1,297,746.30x = 1,297,753,735,221.33
  5. Step 5: Solve for x
    x = 1,297,753,735,221.33/1,297,746.30
  6. Step 6: Final answer
    x = 1,000,005.73

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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.