Home / 427,813.20-590,481.36-284,579.28

Finding the Fourth Proportional to 427,813.20, 590,481.36 and 284,579.28

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Solution

The fourth proportional to 427,813.20, 590,481.36 and 284,579.28 is: 392,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,813.20 : 590,481.36 = 284,579.28 : x
  2. Step 2: Convert to fraction form
    427,813.20/590,481.36 = 284,579.28/x
  3. Step 3: Cross multiply
    427,813.20x = 590,481.36 × 284,579.28
  4. Step 4: Simplify right side
    427,813.20x = 168,038,760,282.22
  5. Step 5: Solve for x
    x = 168,038,760,282.22/427,813.20
  6. Step 6: Final answer
    x = 392,785.36

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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.