Home / 3,780,480-5,672,390.40-1,982,933.76

Finding the Fourth Proportional to 3,780,480, 5,672,390.40 and 1,982,933.76

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Solution

The fourth proportional to 3,780,480, 5,672,390.40 and 1,982,933.76 is: 2,975,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780,480 : 5,672,390.40 = 1,982,933.76 : x
  2. Step 2: Convert to fraction form
    3,780,480/5,672,390.40 = 1,982,933.76/x
  3. Step 3: Cross multiply
    3,780,480x = 5,672,390.40 × 1,982,933.76
  4. Step 4: Simplify right side
    3,780,480x = 11,247,974,424,059.90
  5. Step 5: Solve for x
    x = 11,247,974,424,059.90/3,780,480
  6. Step 6: Final answer
    x = 2,975,276.80

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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.