Home / 781,116-1,171,674.24-190,140

Finding the Fourth Proportional to 781,116, 1,171,674.24 and 190,140

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Solution

The fourth proportional to 781,116, 1,171,674.24 and 190,140 is: 285,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,116 : 1,171,674.24 = 190,140 : x
  2. Step 2: Convert to fraction form
    781,116/1,171,674.24 = 190,140/x
  3. Step 3: Cross multiply
    781,116x = 1,171,674.24 × 190,140
  4. Step 4: Simplify right side
    781,116x = 222,782,139,993.60
  5. Step 5: Solve for x
    x = 222,782,139,993.60/781,116
  6. Step 6: Final answer
    x = 285,210.06

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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.