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Finding the Fourth Proportional to 628,481.93, 942,816.70 and 291,556.64

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Solution

The fourth proportional to 628,481.93, 942,816.70 and 291,556.64 is: 437,378.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,481.93 : 942,816.70 = 291,556.64 : x
  2. Step 2: Convert to fraction form
    628,481.93/942,816.70 = 291,556.64/x
  3. Step 3: Cross multiply
    628,481.93x = 942,816.70 × 291,556.64
  4. Step 4: Simplify right side
    628,481.93x = 274,884,470,816.04
  5. Step 5: Solve for x
    x = 274,884,470,816.04/628,481.93
  6. Step 6: Final answer
    x = 437,378.48

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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.