Home / 455,972.02-628,914.98-320,036.33

Finding the Fourth Proportional to 455,972.02, 628,914.98 and 320,036.33

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Solution

The fourth proportional to 455,972.02, 628,914.98 and 320,036.33 is: 441,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,972.02 : 628,914.98 = 320,036.33 : x
  2. Step 2: Convert to fraction form
    455,972.02/628,914.98 = 320,036.33/x
  3. Step 3: Cross multiply
    455,972.02x = 628,914.98 × 320,036.33
  4. Step 4: Simplify right side
    455,972.02x = 201,275,644,453.60
  5. Step 5: Solve for x
    x = 201,275,644,453.60/455,972.02
  6. Step 6: Final answer
    x = 441,421.04

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1.5x scale

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.