Home / 684,845.40-1,027,268.10-404,218.20

Finding the Fourth Proportional to 684,845.40, 1,027,268.10 and 404,218.20

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Solution

The fourth proportional to 684,845.40, 1,027,268.10 and 404,218.20 is: 606,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,845.40 : 1,027,268.10 = 404,218.20 : x
  2. Step 2: Convert to fraction form
    684,845.40/1,027,268.10 = 404,218.20/x
  3. Step 3: Cross multiply
    684,845.40x = 1,027,268.10 × 404,218.20
  4. Step 4: Simplify right side
    684,845.40x = 415,240,462,299.42
  5. Step 5: Solve for x
    x = 415,240,462,299.42/684,845.40
  6. Step 6: Final answer
    x = 606,327.30

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Double scale
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Similar ratio
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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.