Home / 1,380,835.79-1,906,298.93-968,635.49

Finding the Fourth Proportional to 1,380,835.79, 1,906,298.93 and 968,635.49

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Solution

The fourth proportional to 1,380,835.79, 1,906,298.93 and 968,635.49 is: 1,337,239.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,835.79 : 1,906,298.93 = 968,635.49 : x
  2. Step 2: Convert to fraction form
    1,380,835.79/1,906,298.93 = 968,635.49/x
  3. Step 3: Cross multiply
    1,380,835.79x = 1,906,298.93 × 968,635.49
  4. Step 4: Simplify right side
    1,380,835.79x = 1,846,508,783,772.35
  5. Step 5: Solve for x
    x = 1,846,508,783,772.35/1,380,835.79
  6. Step 6: Final answer
    x = 1,337,239.96

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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.