Home / 690,742-1,036,171.32-192,106

Finding the Fourth Proportional to 690,742, 1,036,171.32 and 192,106

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Solution

The fourth proportional to 690,742, 1,036,171.32 and 192,106 is: 288,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,742 : 1,036,171.32 = 192,106 : x
  2. Step 2: Convert to fraction form
    690,742/1,036,171.32 = 192,106/x
  3. Step 3: Cross multiply
    690,742x = 1,036,171.32 × 192,106
  4. Step 4: Simplify right side
    690,742x = 199,054,727,599.92
  5. Step 5: Solve for x
    x = 199,054,727,599.92/690,742
  6. Step 6: Final answer
    x = 288,175.22

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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.