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Finding the Fourth Proportional to 284,626.58, 426,939.39 and 74,264.54

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Solution

The fourth proportional to 284,626.58, 426,939.39 and 74,264.54 is: 111,396.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,626.58 : 426,939.39 = 74,264.54 : x
  2. Step 2: Convert to fraction form
    284,626.58/426,939.39 = 74,264.54/x
  3. Step 3: Cross multiply
    284,626.58x = 426,939.39 × 74,264.54
  4. Step 4: Simplify right side
    284,626.58x = 31,706,455,271.53
  5. Step 5: Solve for x
    x = 31,706,455,271.53/284,626.58
  6. Step 6: Final answer
    x = 111,396.68

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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.