Home / 687,833.37-1,031,352.75-266,617.17

Finding the Fourth Proportional to 687,833.37, 1,031,352.75 and 266,617.17

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Solution

The fourth proportional to 687,833.37, 1,031,352.75 and 266,617.17 is: 399,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,833.37 : 1,031,352.75 = 266,617.17 : x
  2. Step 2: Convert to fraction form
    687,833.37/1,031,352.75 = 266,617.17/x
  3. Step 3: Cross multiply
    687,833.37x = 1,031,352.75 × 266,617.17
  4. Step 4: Simplify right side
    687,833.37x = 274,976,351,476.72
  5. Step 5: Solve for x
    x = 274,976,351,476.72/687,833.37
  6. Step 6: Final answer
    x = 399,771.75

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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.