Home / 812,005.56-1,120,619.69-467,835.23

Finding the Fourth Proportional to 812,005.56, 1,120,619.69 and 467,835.23

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Solution

The fourth proportional to 812,005.56, 1,120,619.69 and 467,835.23 is: 645,642.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,005.56 : 1,120,619.69 = 467,835.23 : x
  2. Step 2: Convert to fraction form
    812,005.56/1,120,619.69 = 467,835.23/x
  3. Step 3: Cross multiply
    812,005.56x = 1,120,619.69 × 467,835.23
  4. Step 4: Simplify right side
    812,005.56x = 524,265,370,413.68
  5. Step 5: Solve for x
    x = 524,265,370,413.68/812,005.56
  6. Step 6: Final answer
    x = 645,642.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.