Home / 1,210,092.20-1,811,201.70-942,403.40

Finding the Fourth Proportional to 1,210,092.20, 1,811,201.70 and 942,403.40

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Solution

The fourth proportional to 1,210,092.20, 1,811,201.70 and 942,403.40 is: 1,410,539.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,092.20 : 1,811,201.70 = 942,403.40 : x
  2. Step 2: Convert to fraction form
    1,210,092.20/1,811,201.70 = 942,403.40/x
  3. Step 3: Cross multiply
    1,210,092.20x = 1,811,201.70 × 942,403.40
  4. Step 4: Simplify right side
    1,210,092.20x = 1,706,882,640,165.78
  5. Step 5: Solve for x
    x = 1,706,882,640,165.78/1,210,092.20
  6. Step 6: Final answer
    x = 1,410,539.33

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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.