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Finding the Fourth Proportional to 495,798.78, 743,698.44 and 327,279.72

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Solution

The fourth proportional to 495,798.78, 743,698.44 and 327,279.72 is: 490,919.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,798.78 : 743,698.44 = 327,279.72 : x
  2. Step 2: Convert to fraction form
    495,798.78/743,698.44 = 327,279.72/x
  3. Step 3: Cross multiply
    495,798.78x = 743,698.44 × 327,279.72
  4. Step 4: Simplify right side
    495,798.78x = 243,397,417,207.64
  5. Step 5: Solve for x
    x = 243,397,417,207.64/495,798.78
  6. Step 6: Final answer
    x = 490,919.76

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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.