Home / 828,020.40-1,242,030.60-295,558.80

Finding the Fourth Proportional to 828,020.40, 1,242,030.60 and 295,558.80

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Solution

The fourth proportional to 828,020.40, 1,242,030.60 and 295,558.80 is: 443,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,020.40 : 1,242,030.60 = 295,558.80 : x
  2. Step 2: Convert to fraction form
    828,020.40/1,242,030.60 = 295,558.80/x
  3. Step 3: Cross multiply
    828,020.40x = 1,242,030.60 × 295,558.80
  4. Step 4: Simplify right side
    828,020.40x = 367,093,073,699.28
  5. Step 5: Solve for x
    x = 367,093,073,699.28/828,020.40
  6. Step 6: Final answer
    x = 443,338.20

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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.