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Finding the Third Proportional to 455,220.63 and 679,707.07

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Solution

The third proportional to 455,220.63 and 679,707.07 is: 1,014,896.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,220.63 : 679,707.07 = 679,707.07 : x
  2. Step 2: Convert to fraction form
    455,220.63/679,707.07 = 679,707.07/x
  3. Step 3: Cross multiply
    455,220.63x = 679,707.07 × 679,707.07
  4. Step 4: Simplify right side
    455,220.63x = 462,001,701,432.80
  5. Step 5: Solve for x
    x = 462,001,701,432.80/455,220.63
  6. Step 6: Final answer
    x = 1,014,896.22

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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.