Home / 991,203-1,486,799.64-281,232.36

Finding the Fourth Proportional to 991,203, 1,486,799.64 and 281,232.36

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Solution

The fourth proportional to 991,203, 1,486,799.64 and 281,232.36 is: 421,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,203 : 1,486,799.64 = 281,232.36 : x
  2. Step 2: Convert to fraction form
    991,203/1,486,799.64 = 281,232.36/x
  3. Step 3: Cross multiply
    991,203x = 1,486,799.64 × 281,232.36
  4. Step 4: Simplify right side
    991,203x = 418,136,171,604.35
  5. Step 5: Solve for x
    x = 418,136,171,604.35/991,203
  6. Step 6: Final answer
    x = 421,847.16

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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.