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Finding the Fourth Proportional to 628,271.40, 941,792.70 and 253,794.60

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Solution

The fourth proportional to 628,271.40, 941,792.70 and 253,794.60 is: 380,443.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,271.40 : 941,792.70 = 253,794.60 : x
  2. Step 2: Convert to fraction form
    628,271.40/941,792.70 = 253,794.60/x
  3. Step 3: Cross multiply
    628,271.40x = 941,792.70 × 253,794.60
  4. Step 4: Simplify right side
    628,271.40x = 239,021,901,579.42
  5. Step 5: Solve for x
    x = 239,021,901,579.42/628,271.40
  6. Step 6: Final answer
    x = 380,443.71

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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.