Home / 842,548.10-1,263,559.70-281,451.38

Finding the Fourth Proportional to 842,548.10, 1,263,559.70 and 281,451.38

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Solution

The fourth proportional to 842,548.10, 1,263,559.70 and 281,451.38 is: 422,089.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,548.10 : 1,263,559.70 = 281,451.38 : x
  2. Step 2: Convert to fraction form
    842,548.10/1,263,559.70 = 281,451.38/x
  3. Step 3: Cross multiply
    842,548.10x = 1,263,559.70 × 281,451.38
  4. Step 4: Simplify right side
    842,548.10x = 355,630,615,663.22
  5. Step 5: Solve for x
    x = 355,630,615,663.22/842,548.10
  6. Step 6: Final answer
    x = 422,089.39

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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.