Home / 842,280.40-1,263,327.60-211,194.16

Finding the Fourth Proportional to 842,280.40, 1,263,327.60 and 211,194.16

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Solution

The fourth proportional to 842,280.40, 1,263,327.60 and 211,194.16 is: 316,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,280.40 : 1,263,327.60 = 211,194.16 : x
  2. Step 2: Convert to fraction form
    842,280.40/1,263,327.60 = 211,194.16/x
  3. Step 3: Cross multiply
    842,280.40x = 1,263,327.60 × 211,194.16
  4. Step 4: Simplify right side
    842,280.40x = 266,807,411,286.82
  5. Step 5: Solve for x
    x = 266,807,411,286.82/842,280.40
  6. Step 6: Final answer
    x = 316,767.92

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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.