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Finding the Fourth Proportional to 617,073.28, 851,580.48 and 348,818.56

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Solution

The fourth proportional to 617,073.28, 851,580.48 and 348,818.56 is: 481,380.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,073.28 : 851,580.48 = 348,818.56 : x
  2. Step 2: Convert to fraction form
    617,073.28/851,580.48 = 348,818.56/x
  3. Step 3: Cross multiply
    617,073.28x = 851,580.48 × 348,818.56
  4. Step 4: Simplify right side
    617,073.28x = 297,047,076,757.71
  5. Step 5: Solve for x
    x = 297,047,076,757.71/617,073.28
  6. Step 6: Final answer
    x = 481,380.55

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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.