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Finding the Third Proportional to 291,320.63 and 635,599.50

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Solution

The third proportional to 291,320.63 and 635,599.50 is: 1,386,742.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,320.63 : 635,599.50 = 635,599.50 : x
  2. Step 2: Convert to fraction form
    291,320.63/635,599.50 = 635,599.50/x
  3. Step 3: Cross multiply
    291,320.63x = 635,599.50 × 635,599.50
  4. Step 4: Simplify right side
    291,320.63x = 403,986,724,400.25
  5. Step 5: Solve for x
    x = 403,986,724,400.25/291,320.63
  6. Step 6: Final answer
    x = 1,386,742.61

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.