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Finding the Fourth Proportional to 325,120.40, 487,680.60 and 293,627.60

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Solution

The fourth proportional to 325,120.40, 487,680.60 and 293,627.60 is: 440,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,120.40 : 487,680.60 = 293,627.60 : x
  2. Step 2: Convert to fraction form
    325,120.40/487,680.60 = 293,627.60/x
  3. Step 3: Cross multiply
    325,120.40x = 487,680.60 × 293,627.60
  4. Step 4: Simplify right side
    325,120.40x = 143,196,484,144.56
  5. Step 5: Solve for x
    x = 143,196,484,144.56/325,120.40
  6. Step 6: Final answer
    x = 440,441.40

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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.