Home / 455,973.53-628,917.05-320,037.84

Finding the Fourth Proportional to 455,973.53, 628,917.05 and 320,037.84

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Solution

The fourth proportional to 455,973.53, 628,917.05 and 320,037.84 is: 441,423.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,973.53 : 628,917.05 = 320,037.84 : x
  2. Step 2: Convert to fraction form
    455,973.53/628,917.05 = 320,037.84/x
  3. Step 3: Cross multiply
    455,973.53x = 628,917.05 × 320,037.84
  4. Step 4: Simplify right side
    455,973.53x = 201,277,252,620.98
  5. Step 5: Solve for x
    x = 201,277,252,620.98/455,973.53
  6. Step 6: Final answer
    x = 441,423.11

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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.