Home / 494,828.16-742,290.80-139,844.80

Finding the Fourth Proportional to 494,828.16, 742,290.80 and 139,844.80

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Solution

The fourth proportional to 494,828.16, 742,290.80 and 139,844.80 is: 209,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,828.16 : 742,290.80 = 139,844.80 : x
  2. Step 2: Convert to fraction form
    494,828.16/742,290.80 = 139,844.80/x
  3. Step 3: Cross multiply
    494,828.16x = 742,290.80 × 139,844.80
  4. Step 4: Simplify right side
    494,828.16x = 103,805,508,467.84
  5. Step 5: Solve for x
    x = 103,805,508,467.84/494,828.16
  6. Step 6: Final answer
    x = 209,780.92

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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.