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Finding the Third Proportional to 428,583.66 and 931,054.50

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Solution

The third proportional to 428,583.66 and 931,054.50 is: 2,022,621.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,583.66 : 931,054.50 = 931,054.50 : x
  2. Step 2: Convert to fraction form
    428,583.66/931,054.50 = 931,054.50/x
  3. Step 3: Cross multiply
    428,583.66x = 931,054.50 × 931,054.50
  4. Step 4: Simplify right side
    428,583.66x = 866,862,481,970.25
  5. Step 5: Solve for x
    x = 866,862,481,970.25/428,583.66
  6. Step 6: Final answer
    x = 2,022,621.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.