Home / 761,652.90-1,051,078.82-422,121.15

Finding the Fourth Proportional to 761,652.90, 1,051,078.82 and 422,121.15

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Solution

The fourth proportional to 761,652.90, 1,051,078.82 and 422,121.15 is: 582,525.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,652.90 : 1,051,078.82 = 422,121.15 : x
  2. Step 2: Convert to fraction form
    761,652.90/1,051,078.82 = 422,121.15/x
  3. Step 3: Cross multiply
    761,652.90x = 1,051,078.82 × 422,121.15
  4. Step 4: Simplify right side
    761,652.90x = 443,682,598,128.44
  5. Step 5: Solve for x
    x = 443,682,598,128.44/761,652.90
  6. Step 6: Final answer
    x = 582,525.97

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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.