Home / 768,512.92-1,060,637.79-639,223.29

Finding the Fourth Proportional to 768,512.92, 1,060,637.79 and 639,223.29

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Solution

The fourth proportional to 768,512.92, 1,060,637.79 and 639,223.29 is: 882,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,512.92 : 1,060,637.79 = 639,223.29 : x
  2. Step 2: Convert to fraction form
    768,512.92/1,060,637.79 = 639,223.29/x
  3. Step 3: Cross multiply
    768,512.92x = 1,060,637.79 × 639,223.29
  4. Step 4: Simplify right side
    768,512.92x = 677,984,377,465.67
  5. Step 5: Solve for x
    x = 677,984,377,465.67/768,512.92
  6. Step 6: Final answer
    x = 882,202.96

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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.