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Finding the Fourth Proportional to 404,611.80, 606,917.70 and 124,128.60

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Solution

The fourth proportional to 404,611.80, 606,917.70 and 124,128.60 is: 186,192.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,611.80 : 606,917.70 = 124,128.60 : x
  2. Step 2: Convert to fraction form
    404,611.80/606,917.70 = 124,128.60/x
  3. Step 3: Cross multiply
    404,611.80x = 606,917.70 × 124,128.60
  4. Step 4: Simplify right side
    404,611.80x = 75,335,844,416.22
  5. Step 5: Solve for x
    x = 75,335,844,416.22/404,611.80
  6. Step 6: Final answer
    x = 186,192.90

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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.