Home / 692,816.72-1,039,212.75-219,489.77

Finding the Fourth Proportional to 692,816.72, 1,039,212.75 and 219,489.77

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Solution

The fourth proportional to 692,816.72, 1,039,212.75 and 219,489.77 is: 329,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,816.72 : 1,039,212.75 = 219,489.77 : x
  2. Step 2: Convert to fraction form
    692,816.72/1,039,212.75 = 219,489.77/x
  3. Step 3: Cross multiply
    692,816.72x = 1,039,212.75 × 219,489.77
  4. Step 4: Simplify right side
    692,816.72x = 228,096,566,381.12
  5. Step 5: Solve for x
    x = 228,096,566,381.12/692,816.72
  6. Step 6: Final answer
    x = 329,230.75

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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.