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Finding the Fourth Proportional to 617,845.30, 925,601.55 and 317,302.90

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Solution

The fourth proportional to 617,845.30, 925,601.55 and 317,302.90 is: 475,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,845.30 : 925,601.55 = 317,302.90 : x
  2. Step 2: Convert to fraction form
    617,845.30/925,601.55 = 317,302.90/x
  3. Step 3: Cross multiply
    617,845.30x = 925,601.55 × 317,302.90
  4. Step 4: Simplify right side
    617,845.30x = 293,696,056,059.50
  5. Step 5: Solve for x
    x = 293,696,056,059.50/617,845.30
  6. Step 6: Final answer
    x = 475,355.33

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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.