Home / 741,808.80-1,112,895.45-209,322.90

Finding the Fourth Proportional to 741,808.80, 1,112,895.45 and 209,322.90

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Solution

The fourth proportional to 741,808.80, 1,112,895.45 and 209,322.90 is: 314,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,808.80 : 1,112,895.45 = 209,322.90 : x
  2. Step 2: Convert to fraction form
    741,808.80/1,112,895.45 = 209,322.90/x
  3. Step 3: Cross multiply
    741,808.80x = 1,112,895.45 × 209,322.90
  4. Step 4: Simplify right side
    741,808.80x = 232,954,502,990.81
  5. Step 5: Solve for x
    x = 232,954,502,990.81/741,808.80
  6. Step 6: Final answer
    x = 314,035.78

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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.