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Finding the Third Proportional to 278,054 and 607,078

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Solution

The third proportional to 278,054 and 607,078 is: 1,325,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,054 : 607,078 = 607,078 : x
  2. Step 2: Convert to fraction form
    278,054/607,078 = 607,078/x
  3. Step 3: Cross multiply
    278,054x = 607,078 × 607,078
  4. Step 4: Simplify right side
    278,054x = 368,543,698,084
  5. Step 5: Solve for x
    x = 368,543,698,084/278,054
  6. Step 6: Final answer
    x = 1,325,439.30

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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.