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Finding the Fourth Proportional to 437,136.54, 603,315.03 and 315,033.90

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Solution

The fourth proportional to 437,136.54, 603,315.03 and 315,033.90 is: 434,794.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,136.54 : 603,315.03 = 315,033.90 : x
  2. Step 2: Convert to fraction form
    437,136.54/603,315.03 = 315,033.90/x
  3. Step 3: Cross multiply
    437,136.54x = 603,315.03 × 315,033.90
  4. Step 4: Simplify right side
    437,136.54x = 190,064,686,829.52
  5. Step 5: Solve for x
    x = 190,064,686,829.52/437,136.54
  6. Step 6: Final answer
    x = 434,794.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.