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Finding the Fourth Proportional to 439,611.60, 659,325.13 and 123,994.70

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Solution

The fourth proportional to 439,611.60, 659,325.13 and 123,994.70 is: 185,966.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,611.60 : 659,325.13 = 123,994.70 : x
  2. Step 2: Convert to fraction form
    439,611.60/659,325.13 = 123,994.70/x
  3. Step 3: Cross multiply
    439,611.60x = 659,325.13 × 123,994.70
  4. Step 4: Simplify right side
    439,611.60x = 81,752,821,696.81
  5. Step 5: Solve for x
    x = 81,752,821,696.81/439,611.60
  6. Step 6: Final answer
    x = 185,966.02

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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.