Home / 400,928.42-553,071.44-247,917.70

Finding the Fourth Proportional to 400,928.42, 553,071.44 and 247,917.70

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Solution

The fourth proportional to 400,928.42, 553,071.44 and 247,917.70 is: 341,996.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,928.42 : 553,071.44 = 247,917.70 : x
  2. Step 2: Convert to fraction form
    400,928.42/553,071.44 = 247,917.70/x
  3. Step 3: Cross multiply
    400,928.42x = 553,071.44 × 247,917.70
  4. Step 4: Simplify right side
    400,928.42x = 137,116,199,340.49
  5. Step 5: Solve for x
    x = 137,116,199,340.49/400,928.42
  6. Step 6: Final answer
    x = 341,996.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.