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Finding the Third Proportional to 578,679 and 859,635.75

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Solution

The third proportional to 578,679 and 859,635.75 is: 1,277,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,679 : 859,635.75 = 859,635.75 : x
  2. Step 2: Convert to fraction form
    578,679/859,635.75 = 859,635.75/x
  3. Step 3: Cross multiply
    578,679x = 859,635.75 × 859,635.75
  4. Step 4: Simplify right side
    578,679x = 738,973,622,678.06
  5. Step 5: Solve for x
    x = 738,973,622,678.06/578,679
  6. Step 6: Final answer
    x = 1,277,000.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.