Home / 859,838.56-1,289,770.61-327,389.11

Finding the Fourth Proportional to 859,838.56, 1,289,770.61 and 327,389.11

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Solution

The fourth proportional to 859,838.56, 1,289,770.61 and 327,389.11 is: 491,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,838.56 : 1,289,770.61 = 327,389.11 : x
  2. Step 2: Convert to fraction form
    859,838.56/1,289,770.61 = 327,389.11/x
  3. Step 3: Cross multiply
    859,838.56x = 1,289,770.61 × 327,389.11
  4. Step 4: Simplify right side
    859,838.56x = 422,256,852,112.06
  5. Step 5: Solve for x
    x = 422,256,852,112.06/859,838.56
  6. Step 6: Final answer
    x = 491,088.53

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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.