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Finding the Third Proportional to 434,911.50 and 612,454.50

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Solution

The third proportional to 434,911.50 and 612,454.50 is: 862,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,911.50 : 612,454.50 = 612,454.50 : x
  2. Step 2: Convert to fraction form
    434,911.50/612,454.50 = 612,454.50/x
  3. Step 3: Cross multiply
    434,911.50x = 612,454.50 × 612,454.50
  4. Step 4: Simplify right side
    434,911.50x = 375,100,514,570.25
  5. Step 5: Solve for x
    x = 375,100,514,570.25/434,911.50
  6. Step 6: Final answer
    x = 862,475.50

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.