Home / 786,131.24-1,179,258.42-280,801.40

Finding the Fourth Proportional to 786,131.24, 1,179,258.42 and 280,801.40

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Solution

The fourth proportional to 786,131.24, 1,179,258.42 and 280,801.40 is: 421,224.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,131.24 : 1,179,258.42 = 280,801.40 : x
  2. Step 2: Convert to fraction form
    786,131.24/1,179,258.42 = 280,801.40/x
  3. Step 3: Cross multiply
    786,131.24x = 1,179,258.42 × 280,801.40
  4. Step 4: Simplify right side
    786,131.24x = 331,137,415,297.79
  5. Step 5: Solve for x
    x = 331,137,415,297.79/786,131.24
  6. Step 6: Final answer
    x = 421,224.09

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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.