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Finding the Fourth Proportional to 619,255.40, 929,055.90 and 303,722.60

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Solution

The fourth proportional to 619,255.40, 929,055.90 and 303,722.60 is: 455,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,255.40 : 929,055.90 = 303,722.60 : x
  2. Step 2: Convert to fraction form
    619,255.40/929,055.90 = 303,722.60/x
  3. Step 3: Cross multiply
    619,255.40x = 929,055.90 × 303,722.60
  4. Step 4: Simplify right side
    619,255.40x = 282,175,273,493.34
  5. Step 5: Solve for x
    x = 282,175,273,493.34/619,255.40
  6. Step 6: Final answer
    x = 455,668.65

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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.