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Finding the Fourth Proportional to 901,600, 1,244,246.88 and 499,192

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Solution

The fourth proportional to 901,600, 1,244,246.88 and 499,192 is: 688,906.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,600 : 1,244,246.88 = 499,192 : x
  2. Step 2: Convert to fraction form
    901,600/1,244,246.88 = 499,192/x
  3. Step 3: Cross multiply
    901,600x = 1,244,246.88 × 499,192
  4. Step 4: Simplify right side
    901,600x = 621,118,088,520.96
  5. Step 5: Solve for x
    x = 621,118,088,520.96/901,600
  6. Step 6: Final answer
    x = 688,906.49

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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.