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Finding the Third Proportional to 393,459.75 and 607,624.88

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Solution

The third proportional to 393,459.75 and 607,624.88 is: 938,362.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,459.75 : 607,624.88 = 607,624.88 : x
  2. Step 2: Convert to fraction form
    393,459.75/607,624.88 = 607,624.88/x
  3. Step 3: Cross multiply
    393,459.75x = 607,624.88 × 607,624.88
  4. Step 4: Simplify right side
    393,459.75x = 369,207,988,718.77
  5. Step 5: Solve for x
    x = 369,207,988,718.77/393,459.75
  6. Step 6: Final answer
    x = 938,362.79

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.