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Finding the Fourth Proportional to 416,522.98, 624,784.47 and 100,979.88

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Solution

The fourth proportional to 416,522.98, 624,784.47 and 100,979.88 is: 151,469.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,522.98 : 624,784.47 = 100,979.88 : x
  2. Step 2: Convert to fraction form
    416,522.98/624,784.47 = 100,979.88/x
  3. Step 3: Cross multiply
    416,522.98x = 624,784.47 × 100,979.88
  4. Step 4: Simplify right side
    416,522.98x = 63,090,660,806.46
  5. Step 5: Solve for x
    x = 63,090,660,806.46/416,522.98
  6. Step 6: Final answer
    x = 151,469.82

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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.