Home / 821,369.46-1,232,054.19-260,403.96

Finding the Fourth Proportional to 821,369.46, 1,232,054.19 and 260,403.96

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Solution

The fourth proportional to 821,369.46, 1,232,054.19 and 260,403.96 is: 390,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,369.46 : 1,232,054.19 = 260,403.96 : x
  2. Step 2: Convert to fraction form
    821,369.46/1,232,054.19 = 260,403.96/x
  3. Step 3: Cross multiply
    821,369.46x = 1,232,054.19 × 260,403.96
  4. Step 4: Simplify right side
    821,369.46x = 320,831,790,010.59
  5. Step 5: Solve for x
    x = 320,831,790,010.59/821,369.46
  6. Step 6: Final answer
    x = 390,605.94

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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.