Home / 839,128.86-1,157,694.07-548,906.08

Finding the Fourth Proportional to 839,128.86, 1,157,694.07 and 548,906.08

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Solution

The fourth proportional to 839,128.86, 1,157,694.07 and 548,906.08 is: 757,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,128.86 : 1,157,694.07 = 548,906.08 : x
  2. Step 2: Convert to fraction form
    839,128.86/1,157,694.07 = 548,906.08/x
  3. Step 3: Cross multiply
    839,128.86x = 1,157,694.07 × 548,906.08
  4. Step 4: Simplify right side
    839,128.86x = 635,465,313,802.95
  5. Step 5: Solve for x
    x = 635,465,313,802.95/839,128.86
  6. Step 6: Final answer
    x = 757,291.69

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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.