Home / 548,845.40-821,712.90-492,858.20

Finding the Fourth Proportional to 548,845.40, 821,712.90 and 492,858.20

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Solution

The fourth proportional to 548,845.40, 821,712.90 and 492,858.20 is: 737,890.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,845.40 : 821,712.90 = 492,858.20 : x
  2. Step 2: Convert to fraction form
    548,845.40/821,712.90 = 492,858.20/x
  3. Step 3: Cross multiply
    548,845.40x = 821,712.90 × 492,858.20
  4. Step 4: Simplify right side
    548,845.40x = 404,987,940,810.78
  5. Step 5: Solve for x
    x = 404,987,940,810.78/548,845.40
  6. Step 6: Final answer
    x = 737,890.74

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1.5x scale

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.