Home / 427,792.03-642,318.85-238,622

Finding the Fourth Proportional to 427,792.03, 642,318.85 and 238,622

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Solution

The fourth proportional to 427,792.03, 642,318.85 and 238,622 is: 358,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,792.03 : 642,318.85 = 238,622 : x
  2. Step 2: Convert to fraction form
    427,792.03/642,318.85 = 238,622/x
  3. Step 3: Cross multiply
    427,792.03x = 642,318.85 × 238,622
  4. Step 4: Simplify right side
    427,792.03x = 153,271,408,624.70
  5. Step 5: Solve for x
    x = 153,271,408,624.70/427,792.03
  6. Step 6: Final answer
    x = 358,284.86

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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.