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Finding the Fourth Proportional to 615,704.36, 849,813.75 and 361,137.56

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Solution

The fourth proportional to 615,704.36, 849,813.75 and 361,137.56 is: 498,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,704.36 : 849,813.75 = 361,137.56 : x
  2. Step 2: Convert to fraction form
    615,704.36/849,813.75 = 361,137.56/x
  3. Step 3: Cross multiply
    615,704.36x = 849,813.75 × 361,137.56
  4. Step 4: Simplify right side
    615,704.36x = 306,899,659,880.38
  5. Step 5: Solve for x
    x = 306,899,659,880.38/615,704.36
  6. Step 6: Final answer
    x = 498,452.96

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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.