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Finding the Fourth Proportional to 645,912.88, 968,586.88 and 325,867.84

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Solution

The fourth proportional to 645,912.88, 968,586.88 and 325,867.84 is: 488,659.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,912.88 : 968,586.88 = 325,867.84 : x
  2. Step 2: Convert to fraction form
    645,912.88/968,586.88 = 325,867.84/x
  3. Step 3: Cross multiply
    645,912.88x = 968,586.88 × 325,867.84
  4. Step 4: Simplify right side
    645,912.88x = 315,631,314,437.94
  5. Step 5: Solve for x
    x = 315,631,314,437.94/645,912.88
  6. Step 6: Final answer
    x = 488,659.27

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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.