Home / 1,145,788.92-1,581,233.58-783,971.64

Finding the Fourth Proportional to 1,145,788.92, 1,581,233.58 and 783,971.64

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Solution

The fourth proportional to 1,145,788.92, 1,581,233.58 and 783,971.64 is: 1,081,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,788.92 : 1,581,233.58 = 783,971.64 : x
  2. Step 2: Convert to fraction form
    1,145,788.92/1,581,233.58 = 783,971.64/x
  3. Step 3: Cross multiply
    1,145,788.92x = 1,581,233.58 × 783,971.64
  4. Step 4: Simplify right side
    1,145,788.92x = 1,239,642,282,935.67
  5. Step 5: Solve for x
    x = 1,239,642,282,935.67/1,145,788.92
  6. Step 6: Final answer
    x = 1,081,911.56

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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.