Home / 842,514.07-1,263,771.10-281,548.57

Finding the Fourth Proportional to 842,514.07, 1,263,771.10 and 281,548.57

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Solution

The fourth proportional to 842,514.07, 1,263,771.10 and 281,548.57 is: 422,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,514.07 : 1,263,771.10 = 281,548.57 : x
  2. Step 2: Convert to fraction form
    842,514.07/1,263,771.10 = 281,548.57/x
  3. Step 3: Cross multiply
    842,514.07x = 1,263,771.10 × 281,548.57
  4. Step 4: Simplify right side
    842,514.07x = 355,812,938,285.73
  5. Step 5: Solve for x
    x = 355,812,938,285.73/842,514.07
  6. Step 6: Final answer
    x = 422,322.85

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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.