Home / 681,687.70-1,022,521.95-307,710.10

Finding the Fourth Proportional to 681,687.70, 1,022,521.95 and 307,710.10

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Solution

The fourth proportional to 681,687.70, 1,022,521.95 and 307,710.10 is: 461,560.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,687.70 : 1,022,521.95 = 307,710.10 : x
  2. Step 2: Convert to fraction form
    681,687.70/1,022,521.95 = 307,710.10/x
  3. Step 3: Cross multiply
    681,687.70x = 1,022,521.95 × 307,710.10
  4. Step 4: Simplify right side
    681,687.70x = 314,640,331,486.70
  5. Step 5: Solve for x
    x = 314,640,331,486.70/681,687.70
  6. Step 6: Final answer
    x = 461,560.82

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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.