Home / 855,187.45-1,180,283.88-492,540.73

Finding the Fourth Proportional to 855,187.45, 1,180,283.88 and 492,540.73

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Solution

The fourth proportional to 855,187.45, 1,180,283.88 and 492,540.73 is: 679,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,187.45 : 1,180,283.88 = 492,540.73 : x
  2. Step 2: Convert to fraction form
    855,187.45/1,180,283.88 = 492,540.73/x
  3. Step 3: Cross multiply
    855,187.45x = 1,180,283.88 × 492,540.73
  4. Step 4: Simplify right side
    855,187.45x = 581,337,883,862.43
  5. Step 5: Solve for x
    x = 581,337,883,862.43/855,187.45
  6. Step 6: Final answer
    x = 679,778.32

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1.5x scale

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.