Home / 842,456.82-1,263,685.41-281,491.38

Finding the Fourth Proportional to 842,456.82, 1,263,685.41 and 281,491.38

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Solution

The fourth proportional to 842,456.82, 1,263,685.41 and 281,491.38 is: 422,237.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,456.82 : 1,263,685.41 = 281,491.38 : x
  2. Step 2: Convert to fraction form
    842,456.82/1,263,685.41 = 281,491.38/x
  3. Step 3: Cross multiply
    842,456.82x = 1,263,685.41 × 281,491.38
  4. Step 4: Simplify right side
    842,456.82x = 355,716,549,946.77
  5. Step 5: Solve for x
    x = 355,716,549,946.77/842,456.82
  6. Step 6: Final answer
    x = 422,237.13

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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.