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Finding the Fourth Proportional to 901,812, 1,244,539.68 and 499,404

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Solution

The fourth proportional to 901,812, 1,244,539.68 and 499,404 is: 689,199.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,812 : 1,244,539.68 = 499,404 : x
  2. Step 2: Convert to fraction form
    901,812/1,244,539.68 = 499,404/x
  3. Step 3: Cross multiply
    901,812x = 1,244,539.68 × 499,404
  4. Step 4: Simplify right side
    901,812x = 621,528,094,350.72
  5. Step 5: Solve for x
    x = 621,528,094,350.72/901,812
  6. Step 6: Final answer
    x = 689,199.18

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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.