Home / 494,812.64-742,248.96-139,853.24

Finding the Fourth Proportional to 494,812.64, 742,248.96 and 139,853.24

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Solution

The fourth proportional to 494,812.64, 742,248.96 and 139,853.24 is: 209,788.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,812.64 : 742,248.96 = 139,853.24 : x
  2. Step 2: Convert to fraction form
    494,812.64/742,248.96 = 139,853.24/x
  3. Step 3: Cross multiply
    494,812.64x = 742,248.96 × 139,853.24
  4. Step 4: Simplify right side
    494,812.64x = 103,805,921,942.63
  5. Step 5: Solve for x
    x = 103,805,921,942.63/494,812.64
  6. Step 6: Final answer
    x = 209,788.34

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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.