Home / 687,954.07-1,032,109.31-261,497.17

Finding the Fourth Proportional to 687,954.07, 1,032,109.31 and 261,497.17

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Solution

The fourth proportional to 687,954.07, 1,032,109.31 and 261,497.17 is: 392,313.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,954.07 : 1,032,109.31 = 261,497.17 : x
  2. Step 2: Convert to fraction form
    687,954.07/1,032,109.31 = 261,497.17/x
  3. Step 3: Cross multiply
    687,954.07x = 1,032,109.31 × 261,497.17
  4. Step 4: Simplify right side
    687,954.07x = 269,893,663,695.65
  5. Step 5: Solve for x
    x = 269,893,663,695.65/687,954.07
  6. Step 6: Final answer
    x = 392,313.49

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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.