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Finding the Fourth Proportional to 543,616.40, 815,424.60 and 494,627.60

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Solution

The fourth proportional to 543,616.40, 815,424.60 and 494,627.60 is: 741,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,616.40 : 815,424.60 = 494,627.60 : x
  2. Step 2: Convert to fraction form
    543,616.40/815,424.60 = 494,627.60/x
  3. Step 3: Cross multiply
    543,616.40x = 815,424.60 × 494,627.60
  4. Step 4: Simplify right side
    543,616.40x = 403,331,512,878.96
  5. Step 5: Solve for x
    x = 403,331,512,878.96/543,616.40
  6. Step 6: Final answer
    x = 741,941.40

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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.