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Finding the Fourth Proportional to 416,512.80, 623,894.40 and 229,305.60

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Solution

The fourth proportional to 416,512.80, 623,894.40 and 229,305.60 is: 343,476.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,512.80 : 623,894.40 = 229,305.60 : x
  2. Step 2: Convert to fraction form
    416,512.80/623,894.40 = 229,305.60/x
  3. Step 3: Cross multiply
    416,512.80x = 623,894.40 × 229,305.60
  4. Step 4: Simplify right side
    416,512.80x = 143,062,479,728.64
  5. Step 5: Solve for x
    x = 143,062,479,728.64/416,512.80
  6. Step 6: Final answer
    x = 343,476.79

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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.