Home / 763,516.77-1,145,085.89-258,066.51

Finding the Fourth Proportional to 763,516.77, 1,145,085.89 and 258,066.51

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Solution

The fourth proportional to 763,516.77, 1,145,085.89 and 258,066.51 is: 387,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,516.77 : 1,145,085.89 = 258,066.51 : x
  2. Step 2: Convert to fraction form
    763,516.77/1,145,085.89 = 258,066.51/x
  3. Step 3: Cross multiply
    763,516.77x = 1,145,085.89 × 258,066.51
  4. Step 4: Simplify right side
    763,516.77x = 295,508,319,282.54
  5. Step 5: Solve for x
    x = 295,508,319,282.54/763,516.77
  6. Step 6: Final answer
    x = 387,035.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.