Home / 890,680.40-1,336,020.60-722,718.80

Finding the Fourth Proportional to 890,680.40, 1,336,020.60 and 722,718.80

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Solution

The fourth proportional to 890,680.40, 1,336,020.60 and 722,718.80 is: 1,084,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,680.40 : 1,336,020.60 = 722,718.80 : x
  2. Step 2: Convert to fraction form
    890,680.40/1,336,020.60 = 722,718.80/x
  3. Step 3: Cross multiply
    890,680.40x = 1,336,020.60 × 722,718.80
  4. Step 4: Simplify right side
    890,680.40x = 965,567,204,807.28
  5. Step 5: Solve for x
    x = 965,567,204,807.28/890,680.40
  6. Step 6: Final answer
    x = 1,084,078.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.