Home / 494,410.17-741,549.68-139,452.78

Finding the Fourth Proportional to 494,410.17, 741,549.68 and 139,452.78

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Solution

The fourth proportional to 494,410.17, 741,549.68 and 139,452.78 is: 209,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,410.17 : 741,549.68 = 139,452.78 : x
  2. Step 2: Convert to fraction form
    494,410.17/741,549.68 = 139,452.78/x
  3. Step 3: Cross multiply
    494,410.17x = 741,549.68 × 139,452.78
  4. Step 4: Simplify right side
    494,410.17x = 103,411,164,384.11
  5. Step 5: Solve for x
    x = 103,411,164,384.11/494,410.17
  6. Step 6: Final answer
    x = 209,160.67

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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.