Home / 690,572.80-1,035,874.56-191,933.44

Finding the Fourth Proportional to 690,572.80, 1,035,874.56 and 191,933.44

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Solution

The fourth proportional to 690,572.80, 1,035,874.56 and 191,933.44 is: 287,904.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,572.80 : 1,035,874.56 = 191,933.44 : x
  2. Step 2: Convert to fraction form
    690,572.80/1,035,874.56 = 191,933.44/x
  3. Step 3: Cross multiply
    690,572.80x = 1,035,874.56 × 191,933.44
  4. Step 4: Simplify right side
    690,572.80x = 198,818,967,709.29
  5. Step 5: Solve for x
    x = 198,818,967,709.29/690,572.80
  6. Step 6: Final answer
    x = 287,904.43

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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.