Home / 1,237,481.40-1,853,111.70-920,220.60

Finding the Fourth Proportional to 1,237,481.40, 1,853,111.70 and 920,220.60

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Solution

The fourth proportional to 1,237,481.40, 1,853,111.70 and 920,220.60 is: 1,378,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,481.40 : 1,853,111.70 = 920,220.60 : x
  2. Step 2: Convert to fraction form
    1,237,481.40/1,853,111.70 = 920,220.60/x
  3. Step 3: Cross multiply
    1,237,481.40x = 1,853,111.70 × 920,220.60
  4. Step 4: Simplify right side
    1,237,481.40x = 1,705,271,560,441.02
  5. Step 5: Solve for x
    x = 1,705,271,560,441.02/1,237,481.40
  6. Step 6: Final answer
    x = 1,378,017.93

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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.