Home / 1,214,665.40-1,821,998.10-931,230.20

Finding the Fourth Proportional to 1,214,665.40, 1,821,998.10 and 931,230.20

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Solution

The fourth proportional to 1,214,665.40, 1,821,998.10 and 931,230.20 is: 1,396,845.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,665.40 : 1,821,998.10 = 931,230.20 : x
  2. Step 2: Convert to fraction form
    1,214,665.40/1,821,998.10 = 931,230.20/x
  3. Step 3: Cross multiply
    1,214,665.40x = 1,821,998.10 × 931,230.20
  4. Step 4: Simplify right side
    1,214,665.40x = 1,696,699,655,062.62
  5. Step 5: Solve for x
    x = 1,696,699,655,062.62/1,214,665.40
  6. Step 6: Final answer
    x = 1,396,845.30

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Double scale
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Similar ratio
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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.