Home / 842,517.07-1,263,775.60-281,551.57

Finding the Fourth Proportional to 842,517.07, 1,263,775.60 and 281,551.57

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Solution

The fourth proportional to 842,517.07, 1,263,775.60 and 281,551.57 is: 422,327.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,517.07 : 1,263,775.60 = 281,551.57 : x
  2. Step 2: Convert to fraction form
    842,517.07/1,263,775.60 = 281,551.57/x
  3. Step 3: Cross multiply
    842,517.07x = 1,263,775.60 × 281,551.57
  4. Step 4: Simplify right side
    842,517.07x = 355,817,997,988.81
  5. Step 5: Solve for x
    x = 355,817,997,988.81/842,517.07
  6. Step 6: Final answer
    x = 422,327.35

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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.