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Finding the Fourth Proportional to 898,659.82, 1,348,659.21 and 659,392.01

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Solution

The fourth proportional to 898,659.82, 1,348,659.21 and 659,392.01 is: 989,579.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,659.82 : 1,348,659.21 = 659,392.01 : x
  2. Step 2: Convert to fraction form
    898,659.82/1,348,659.21 = 659,392.01/x
  3. Step 3: Cross multiply
    898,659.82x = 1,348,659.21 × 659,392.01
  4. Step 4: Simplify right side
    898,659.82x = 889,295,107,286.91
  5. Step 5: Solve for x
    x = 889,295,107,286.91/898,659.82
  6. Step 6: Final answer
    x = 989,579.25

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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.