Home / 538,431.72-743,040.75-296,722.95

Finding the Fourth Proportional to 538,431.72, 743,040.75 and 296,722.95

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Solution

The fourth proportional to 538,431.72, 743,040.75 and 296,722.95 is: 409,480.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,431.72 : 743,040.75 = 296,722.95 : x
  2. Step 2: Convert to fraction form
    538,431.72/743,040.75 = 296,722.95/x
  3. Step 3: Cross multiply
    538,431.72x = 743,040.75 × 296,722.95
  4. Step 4: Simplify right side
    538,431.72x = 220,477,243,310.21
  5. Step 5: Solve for x
    x = 220,477,243,310.21/538,431.72
  6. Step 6: Final answer
    x = 409,480.41

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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.