Home / 2,780,287.56-4,170,827.50-861,349.60

Finding the Fourth Proportional to 2,780,287.56, 4,170,827.50 and 861,349.60

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Solution

The fourth proportional to 2,780,287.56, 4,170,827.50 and 861,349.60 is: 1,292,147.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,287.56 : 4,170,827.50 = 861,349.60 : x
  2. Step 2: Convert to fraction form
    2,780,287.56/4,170,827.50 = 861,349.60/x
  3. Step 3: Cross multiply
    2,780,287.56x = 4,170,827.50 × 861,349.60
  4. Step 4: Simplify right side
    2,780,287.56x = 3,592,540,604,786.88
  5. Step 5: Solve for x
    x = 3,592,540,604,786.88/2,780,287.56
  6. Step 6: Final answer
    x = 1,292,147.14

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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.