Home / 870,991.46-1,201,968.20-489,026.46

Finding the Fourth Proportional to 870,991.46, 1,201,968.20 and 489,026.46

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Solution

The fourth proportional to 870,991.46, 1,201,968.20 and 489,026.46 is: 674,856.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,991.46 : 1,201,968.20 = 489,026.46 : x
  2. Step 2: Convert to fraction form
    870,991.46/1,201,968.20 = 489,026.46/x
  3. Step 3: Cross multiply
    870,991.46x = 1,201,968.20 × 489,026.46
  4. Step 4: Simplify right side
    870,991.46x = 587,794,253,878.57
  5. Step 5: Solve for x
    x = 587,794,253,878.57/870,991.46
  6. Step 6: Final answer
    x = 674,856.51

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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.