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Finding the Fourth Proportional to 383,704.40, 529,119.86 and 254,597.70

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Solution

The fourth proportional to 383,704.40, 529,119.86 and 254,597.70 is: 351,084.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,704.40 : 529,119.86 = 254,597.70 : x
  2. Step 2: Convert to fraction form
    383,704.40/529,119.86 = 254,597.70/x
  3. Step 3: Cross multiply
    383,704.40x = 529,119.86 × 254,597.70
  4. Step 4: Simplify right side
    383,704.40x = 134,712,699,380.32
  5. Step 5: Solve for x
    x = 134,712,699,380.32/383,704.40
  6. Step 6: Final answer
    x = 351,084.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.