Home / 772,802.20-1,159,203.30-658,640.80

Finding the Fourth Proportional to 772,802.20, 1,159,203.30 and 658,640.80

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Solution

The fourth proportional to 772,802.20, 1,159,203.30 and 658,640.80 is: 987,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,802.20 : 1,159,203.30 = 658,640.80 : x
  2. Step 2: Convert to fraction form
    772,802.20/1,159,203.30 = 658,640.80/x
  3. Step 3: Cross multiply
    772,802.20x = 1,159,203.30 × 658,640.80
  4. Step 4: Simplify right side
    772,802.20x = 763,498,588,874.64
  5. Step 5: Solve for x
    x = 763,498,588,874.64/772,802.20
  6. Step 6: Final answer
    x = 987,961.20

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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.