Home / 494,986.70-742,491.57-121,012.94

Finding the Fourth Proportional to 494,986.70, 742,491.57 and 121,012.94

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Solution

The fourth proportional to 494,986.70, 742,491.57 and 121,012.94 is: 181,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,986.70 : 742,491.57 = 121,012.94 : x
  2. Step 2: Convert to fraction form
    494,986.70/742,491.57 = 121,012.94/x
  3. Step 3: Cross multiply
    494,986.70x = 742,491.57 × 121,012.94
  4. Step 4: Simplify right side
    494,986.70x = 89,851,087,810.92
  5. Step 5: Solve for x
    x = 89,851,087,810.92/494,986.70
  6. Step 6: Final answer
    x = 181,522.23

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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.