Home / 482,291.21-665,426.13-379,999.55

Finding the Fourth Proportional to 482,291.21, 665,426.13 and 379,999.55

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Solution

The fourth proportional to 482,291.21, 665,426.13 and 379,999.55 is: 524,292.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,291.21 : 665,426.13 = 379,999.55 : x
  2. Step 2: Convert to fraction form
    482,291.21/665,426.13 = 379,999.55/x
  3. Step 3: Cross multiply
    482,291.21x = 665,426.13 × 379,999.55
  4. Step 4: Simplify right side
    482,291.21x = 252,861,629,958.24
  5. Step 5: Solve for x
    x = 252,861,629,958.24/482,291.21
  6. Step 6: Final answer
    x = 524,292.43

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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.