Home / 1,207,412.10-1,811,118.15-1,081,440.90

Finding the Fourth Proportional to 1,207,412.10, 1,811,118.15 and 1,081,440.90

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Solution

The fourth proportional to 1,207,412.10, 1,811,118.15 and 1,081,440.90 is: 1,622,161.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,412.10 : 1,811,118.15 = 1,081,440.90 : x
  2. Step 2: Convert to fraction form
    1,207,412.10/1,811,118.15 = 1,081,440.90/x
  3. Step 3: Cross multiply
    1,207,412.10x = 1,811,118.15 × 1,081,440.90
  4. Step 4: Simplify right side
    1,207,412.10x = 1,958,617,242,142.33
  5. Step 5: Solve for x
    x = 1,958,617,242,142.33/1,207,412.10
  6. Step 6: Final answer
    x = 1,622,161.35

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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.