Home / 785,418.09-1,178,138.99-299,127.16

Finding the Fourth Proportional to 785,418.09, 1,178,138.99 and 299,127.16

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Solution

The fourth proportional to 785,418.09, 1,178,138.99 and 299,127.16 is: 448,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,418.09 : 1,178,138.99 = 299,127.16 : x
  2. Step 2: Convert to fraction form
    785,418.09/1,178,138.99 = 299,127.16/x
  3. Step 3: Cross multiply
    785,418.09x = 1,178,138.99 × 299,127.16
  4. Step 4: Simplify right side
    785,418.09x = 352,413,370,163.97
  5. Step 5: Solve for x
    x = 352,413,370,163.97/785,418.09
  6. Step 6: Final answer
    x = 448,695.25

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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.