Home / 748,414.12-1,122,485.82-215,804.20

Finding the Fourth Proportional to 748,414.12, 1,122,485.82 and 215,804.20

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Solution

The fourth proportional to 748,414.12, 1,122,485.82 and 215,804.20 is: 323,667.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,414.12 : 1,122,485.82 = 215,804.20 : x
  2. Step 2: Convert to fraction form
    748,414.12/1,122,485.82 = 215,804.20/x
  3. Step 3: Cross multiply
    748,414.12x = 1,122,485.82 × 215,804.20
  4. Step 4: Simplify right side
    748,414.12x = 242,237,154,396.44
  5. Step 5: Solve for x
    x = 242,237,154,396.44/748,414.12
  6. Step 6: Final answer
    x = 323,667.27

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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.