Home / 842,321.60-1,263,548.64-281,358.08

Finding the Fourth Proportional to 842,321.60, 1,263,548.64 and 281,358.08

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Solution

The fourth proportional to 842,321.60, 1,263,548.64 and 281,358.08 is: 422,059.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,321.60 : 1,263,548.64 = 281,358.08 : x
  2. Step 2: Convert to fraction form
    842,321.60/1,263,548.64 = 281,358.08/x
  3. Step 3: Cross multiply
    842,321.60x = 1,263,548.64 × 281,358.08
  4. Step 4: Simplify right side
    842,321.60x = 355,509,619,337.01
  5. Step 5: Solve for x
    x = 355,509,619,337.01/842,321.60
  6. Step 6: Final answer
    x = 422,059.25

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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.