Home / 1,168,989.84-1,612,693.32-685,310.16

Finding the Fourth Proportional to 1,168,989.84, 1,612,693.32 and 685,310.16

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Solution

The fourth proportional to 1,168,989.84, 1,612,693.32 and 685,310.16 is: 945,427.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,989.84 : 1,612,693.32 = 685,310.16 : x
  2. Step 2: Convert to fraction form
    1,168,989.84/1,612,693.32 = 685,310.16/x
  3. Step 3: Cross multiply
    1,168,989.84x = 1,612,693.32 × 685,310.16
  4. Step 4: Simplify right side
    1,168,989.84x = 1,105,195,117,160.13
  5. Step 5: Solve for x
    x = 1,105,195,117,160.13/1,168,989.84
  6. Step 6: Final answer
    x = 945,427.48

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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.