Home / 427,610.40-589,845.78-282,416.47

Finding the Fourth Proportional to 427,610.40, 589,845.78 and 282,416.47

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Solution

The fourth proportional to 427,610.40, 589,845.78 and 282,416.47 is: 389,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,610.40 : 589,845.78 = 282,416.47 : x
  2. Step 2: Convert to fraction form
    427,610.40/589,845.78 = 282,416.47/x
  3. Step 3: Cross multiply
    427,610.40x = 589,845.78 × 282,416.47
  4. Step 4: Simplify right side
    427,610.40x = 166,582,162,334.09
  5. Step 5: Solve for x
    x = 166,582,162,334.09/427,610.40
  6. Step 6: Final answer
    x = 389,565.28

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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.