Home / 785,906.90-1,179,044.67-312,619.22

Finding the Fourth Proportional to 785,906.90, 1,179,044.67 and 312,619.22

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Solution

The fourth proportional to 785,906.90, 1,179,044.67 and 312,619.22 is: 469,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,906.90 : 1,179,044.67 = 312,619.22 : x
  2. Step 2: Convert to fraction form
    785,906.90/1,179,044.67 = 312,619.22/x
  3. Step 3: Cross multiply
    785,906.90x = 1,179,044.67 × 312,619.22
  4. Step 4: Simplify right side
    785,906.90x = 368,592,025,080.56
  5. Step 5: Solve for x
    x = 368,592,025,080.56/785,906.90
  6. Step 6: Final answer
    x = 469,002.15

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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.