Home / 858,954.80-1,288,430.82-219,258.48

Finding the Fourth Proportional to 858,954.80, 1,288,430.82 and 219,258.48

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Solution

The fourth proportional to 858,954.80, 1,288,430.82 and 219,258.48 is: 328,887.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,954.80 : 1,288,430.82 = 219,258.48 : x
  2. Step 2: Convert to fraction form
    858,954.80/1,288,430.82 = 219,258.48/x
  3. Step 3: Cross multiply
    858,954.80x = 1,288,430.82 × 219,258.48
  4. Step 4: Simplify right side
    858,954.80x = 282,499,383,178.35
  5. Step 5: Solve for x
    x = 282,499,383,178.35/858,954.80
  6. Step 6: Final answer
    x = 328,887.37

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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.