Home / 494,822.24-742,139.04-139,751.36

Finding the Fourth Proportional to 494,822.24, 742,139.04 and 139,751.36

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Solution

The fourth proportional to 494,822.24, 742,139.04 and 139,751.36 is: 209,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,822.24 : 742,139.04 = 139,751.36 : x
  2. Step 2: Convert to fraction form
    494,822.24/742,139.04 = 139,751.36/x
  3. Step 3: Cross multiply
    494,822.24x = 742,139.04 × 139,751.36
  4. Step 4: Simplify right side
    494,822.24x = 103,714,940,149.09
  5. Step 5: Solve for x
    x = 103,714,940,149.09/494,822.24
  6. Step 6: Final answer
    x = 209,600.40

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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.