Home / 743,525.64-1,115,287.20-211,051.80

Finding the Fourth Proportional to 743,525.64, 1,115,287.20 and 211,051.80

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Solution

The fourth proportional to 743,525.64, 1,115,287.20 and 211,051.80 is: 316,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,525.64 : 1,115,287.20 = 211,051.80 : x
  2. Step 2: Convert to fraction form
    743,525.64/1,115,287.20 = 211,051.80/x
  3. Step 3: Cross multiply
    743,525.64x = 1,115,287.20 × 211,051.80
  4. Step 4: Simplify right side
    743,525.64x = 235,383,371,076.96
  5. Step 5: Solve for x
    x = 235,383,371,076.96/743,525.64
  6. Step 6: Final answer
    x = 316,577.34

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Double scale
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Similar ratio
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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.