Home / 1,121,623.60-1,682,435.40-722,714.80

Finding the Fourth Proportional to 1,121,623.60, 1,682,435.40 and 722,714.80

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Solution

The fourth proportional to 1,121,623.60, 1,682,435.40 and 722,714.80 is: 1,084,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,623.60 : 1,682,435.40 = 722,714.80 : x
  2. Step 2: Convert to fraction form
    1,121,623.60/1,682,435.40 = 722,714.80/x
  3. Step 3: Cross multiply
    1,121,623.60x = 1,682,435.40 × 722,714.80
  4. Step 4: Simplify right side
    1,121,623.60x = 1,215,920,963,623.92
  5. Step 5: Solve for x
    x = 1,215,920,963,623.92/1,121,623.60
  6. Step 6: Final answer
    x = 1,084,072.20

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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.