Home / 991,151.60-1,486,727.40-281,202.80

Finding the Fourth Proportional to 991,151.60, 1,486,727.40 and 281,202.80

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Solution

The fourth proportional to 991,151.60, 1,486,727.40 and 281,202.80 is: 421,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,151.60 : 1,486,727.40 = 281,202.80 : x
  2. Step 2: Convert to fraction form
    991,151.60/1,486,727.40 = 281,202.80/x
  3. Step 3: Cross multiply
    991,151.60x = 1,486,727.40 × 281,202.80
  4. Step 4: Simplify right side
    991,151.60x = 418,071,907,716.72
  5. Step 5: Solve for x
    x = 418,071,907,716.72/991,151.60
  6. Step 6: Final answer
    x = 421,804.20

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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.