Home / 455,845.20-684,383.40-266,499.60

Finding the Fourth Proportional to 455,845.20, 684,383.40 and 266,499.60

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Solution

The fourth proportional to 455,845.20, 684,383.40 and 266,499.60 is: 400,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,845.20 : 684,383.40 = 266,499.60 : x
  2. Step 2: Convert to fraction form
    455,845.20/684,383.40 = 266,499.60/x
  3. Step 3: Cross multiply
    455,845.20x = 684,383.40 × 266,499.60
  4. Step 4: Simplify right side
    455,845.20x = 182,387,902,346.64
  5. Step 5: Solve for x
    x = 182,387,902,346.64/455,845.20
  6. Step 6: Final answer
    x = 400,109.30

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1.5x scale

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.