Home / 1,092,115.40-1,638,173.10-905,491.40

Finding the Fourth Proportional to 1,092,115.40, 1,638,173.10 and 905,491.40

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Solution

The fourth proportional to 1,092,115.40, 1,638,173.10 and 905,491.40 is: 1,358,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,115.40 : 1,638,173.10 = 905,491.40 : x
  2. Step 2: Convert to fraction form
    1,092,115.40/1,638,173.10 = 905,491.40/x
  3. Step 3: Cross multiply
    1,092,115.40x = 1,638,173.10 × 905,491.40
  4. Step 4: Simplify right side
    1,092,115.40x = 1,483,351,653,761.34
  5. Step 5: Solve for x
    x = 1,483,351,653,761.34/1,092,115.40
  6. Step 6: Final answer
    x = 1,358,237.10

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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.