Home / 511,831.49-706,553.94-330,631.76

Finding the Fourth Proportional to 511,831.49, 706,553.94 and 330,631.76

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Solution

The fourth proportional to 511,831.49, 706,553.94 and 330,631.76 is: 456,418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,831.49 : 706,553.94 = 330,631.76 : x
  2. Step 2: Convert to fraction form
    511,831.49/706,553.94 = 330,631.76/x
  3. Step 3: Cross multiply
    511,831.49x = 706,553.94 × 330,631.76
  4. Step 4: Simplify right side
    511,831.49x = 233,609,172,717.13
  5. Step 5: Solve for x
    x = 233,609,172,717.13/511,831.49
  6. Step 6: Final answer
    x = 456,418.13

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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.