Home / 681,640.70-1,022,451.45-307,663.10

Finding the Fourth Proportional to 681,640.70, 1,022,451.45 and 307,663.10

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Solution

The fourth proportional to 681,640.70, 1,022,451.45 and 307,663.10 is: 461,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,640.70 : 1,022,451.45 = 307,663.10 : x
  2. Step 2: Convert to fraction form
    681,640.70/1,022,451.45 = 307,663.10/x
  3. Step 3: Cross multiply
    681,640.70x = 1,022,451.45 × 307,663.10
  4. Step 4: Simplify right side
    681,640.70x = 314,570,582,706.50
  5. Step 5: Solve for x
    x = 314,570,582,706.50/681,640.70
  6. Step 6: Final answer
    x = 461,490.32

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1.5x scale

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.