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Finding the Fourth Proportional to 617,071.57, 925,627.70 and 212,259.69

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Solution

The fourth proportional to 617,071.57, 925,627.70 and 212,259.69 is: 318,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,071.57 : 925,627.70 = 212,259.69 : x
  2. Step 2: Convert to fraction form
    617,071.57/925,627.70 = 212,259.69/x
  3. Step 3: Cross multiply
    617,071.57x = 925,627.70 × 212,259.69
  4. Step 4: Simplify right side
    617,071.57x = 196,473,449,188.06
  5. Step 5: Solve for x
    x = 196,473,449,188.06/617,071.57
  6. Step 6: Final answer
    x = 318,396.54

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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.