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Finding the Third Proportional to 571,485 and 783,661.75

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Solution

The third proportional to 571,485 and 783,661.75 is: 1,074,613.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,485 : 783,661.75 = 783,661.75 : x
  2. Step 2: Convert to fraction form
    571,485/783,661.75 = 783,661.75/x
  3. Step 3: Cross multiply
    571,485x = 783,661.75 × 783,661.75
  4. Step 4: Simplify right side
    571,485x = 614,125,738,413.06
  5. Step 5: Solve for x
    x = 614,125,738,413.06/571,485
  6. Step 6: Final answer
    x = 1,074,613.92

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.