Home / 1,210,104.70-1,811,220.45-942,415.90

Finding the Fourth Proportional to 1,210,104.70, 1,811,220.45 and 942,415.90

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Solution

The fourth proportional to 1,210,104.70, 1,811,220.45 and 942,415.90 is: 1,410,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,104.70 : 1,811,220.45 = 942,415.90 : x
  2. Step 2: Convert to fraction form
    1,210,104.70/1,811,220.45 = 942,415.90/x
  3. Step 3: Cross multiply
    1,210,104.70x = 1,811,220.45 × 942,415.90
  4. Step 4: Simplify right side
    1,210,104.70x = 1,706,922,950,485.16
  5. Step 5: Solve for x
    x = 1,706,922,950,485.16/1,210,104.70
  6. Step 6: Final answer
    x = 1,410,558.07

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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.