Home / 690,721.44-1,036,047.60-192,089.76

Finding the Fourth Proportional to 690,721.44, 1,036,047.60 and 192,089.76

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Solution

The fourth proportional to 690,721.44, 1,036,047.60 and 192,089.76 is: 288,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,721.44 : 1,036,047.60 = 192,089.76 : x
  2. Step 2: Convert to fraction form
    690,721.44/1,036,047.60 = 192,089.76/x
  3. Step 3: Cross multiply
    690,721.44x = 1,036,047.60 × 192,089.76
  4. Step 4: Simplify right side
    690,721.44x = 199,014,134,832.58
  5. Step 5: Solve for x
    x = 199,014,134,832.58/690,721.44
  6. Step 6: Final answer
    x = 288,125.03

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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.