Home / 991,227-1,486,835.64-281,256.33

Finding the Fourth Proportional to 991,227, 1,486,835.64 and 281,256.33

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Solution

The fourth proportional to 991,227, 1,486,835.64 and 281,256.33 is: 421,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,227 : 1,486,835.64 = 281,256.33 : x
  2. Step 2: Convert to fraction form
    991,227/1,486,835.64 = 281,256.33/x
  3. Step 3: Cross multiply
    991,227x = 1,486,835.64 × 281,256.33
  4. Step 4: Simplify right side
    991,227x = 418,181,935,419.60
  5. Step 5: Solve for x
    x = 418,181,935,419.60/991,227
  6. Step 6: Final answer
    x = 421,883.12

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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.