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Finding the Fourth Proportional to 432,840.40, 649,260.60 and 416,251.60

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Solution

The fourth proportional to 432,840.40, 649,260.60 and 416,251.60 is: 624,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,840.40 : 649,260.60 = 416,251.60 : x
  2. Step 2: Convert to fraction form
    432,840.40/649,260.60 = 416,251.60/x
  3. Step 3: Cross multiply
    432,840.40x = 649,260.60 × 416,251.60
  4. Step 4: Simplify right side
    432,840.40x = 270,255,763,566.96
  5. Step 5: Solve for x
    x = 270,255,763,566.96/432,840.40
  6. Step 6: Final answer
    x = 624,377.40

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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.