Home / 1,168,213.61-1,612,155.78-685,127.18

Finding the Fourth Proportional to 1,168,213.61, 1,612,155.78 and 685,127.18

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Solution

The fourth proportional to 1,168,213.61, 1,612,155.78 and 685,127.18 is: 945,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,213.61 : 1,612,155.78 = 685,127.18 : x
  2. Step 2: Convert to fraction form
    1,168,213.61/1,612,155.78 = 685,127.18/x
  3. Step 3: Cross multiply
    1,168,213.61x = 1,612,155.78 × 685,127.18
  4. Step 4: Simplify right side
    1,168,213.61x = 1,104,531,743,272.10
  5. Step 5: Solve for x
    x = 1,104,531,743,272.10/1,168,213.61
  6. Step 6: Final answer
    x = 945,487.82

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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.