Home / 842,503.08-1,263,819.98-281,539.56

Finding the Fourth Proportional to 842,503.08, 1,263,819.98 and 281,539.56

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Solution

The fourth proportional to 842,503.08, 1,263,819.98 and 281,539.56 is: 422,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,503.08 : 1,263,819.98 = 281,539.56 : x
  2. Step 2: Convert to fraction form
    842,503.08/1,263,819.98 = 281,539.56/x
  3. Step 3: Cross multiply
    842,503.08x = 1,263,819.98 × 281,539.56
  4. Step 4: Simplify right side
    842,503.08x = 355,815,321,088.41
  5. Step 5: Solve for x
    x = 355,815,321,088.41/842,503.08
  6. Step 6: Final answer
    x = 422,331.18

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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.