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Finding the Fourth Proportional to 400,775.63, 553,074.03 and 273,448.49

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Solution

The fourth proportional to 400,775.63, 553,074.03 and 273,448.49 is: 377,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,775.63 : 553,074.03 = 273,448.49 : x
  2. Step 2: Convert to fraction form
    400,775.63/553,074.03 = 273,448.49/x
  3. Step 3: Cross multiply
    400,775.63x = 553,074.03 × 273,448.49
  4. Step 4: Simplify right side
    400,775.63x = 151,237,255,596.35
  5. Step 5: Solve for x
    x = 151,237,255,596.35/400,775.63
  6. Step 6: Final answer
    x = 377,361.41

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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.