Home / 842,519.82-1,263,779.73-281,554.32

Finding the Fourth Proportional to 842,519.82, 1,263,779.73 and 281,554.32

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Solution

The fourth proportional to 842,519.82, 1,263,779.73 and 281,554.32 is: 422,331.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,519.82 : 1,263,779.73 = 281,554.32 : x
  2. Step 2: Convert to fraction form
    842,519.82/1,263,779.73 = 281,554.32/x
  3. Step 3: Cross multiply
    842,519.82x = 1,263,779.73 × 281,554.32
  4. Step 4: Simplify right side
    842,519.82x = 355,822,642,509.93
  5. Step 5: Solve for x
    x = 355,822,642,509.93/842,519.82
  6. Step 6: Final answer
    x = 422,331.48

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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.