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Finding the Fourth Proportional to 617,069.88, 925,916.34 and 279,895.62

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Solution

The fourth proportional to 617,069.88, 925,916.34 and 279,895.62 is: 419,984.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,069.88 : 925,916.34 = 279,895.62 : x
  2. Step 2: Convert to fraction form
    617,069.88/925,916.34 = 279,895.62/x
  3. Step 3: Cross multiply
    617,069.88x = 925,916.34 × 279,895.62
  4. Step 4: Simplify right side
    617,069.88x = 259,159,928,052.43
  5. Step 5: Solve for x
    x = 259,159,928,052.43/617,069.88
  6. Step 6: Final answer
    x = 419,984.73

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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.