Home / 482,128.20-665,410.56-307,773.72

Finding the Fourth Proportional to 482,128.20, 665,410.56 and 307,773.72

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Solution

The fourth proportional to 482,128.20, 665,410.56 and 307,773.72 is: 424,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,128.20 : 665,410.56 = 307,773.72 : x
  2. Step 2: Convert to fraction form
    482,128.20/665,410.56 = 307,773.72/x
  3. Step 3: Cross multiply
    482,128.20x = 665,410.56 × 307,773.72
  4. Step 4: Simplify right side
    482,128.20x = 204,795,883,378.48
  5. Step 5: Solve for x
    x = 204,795,883,378.48/482,128.20
  6. Step 6: Final answer
    x = 424,774.75

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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.