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Finding the Fourth Proportional to 998,492.80, 1,494,628.80 and 718,556.80

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Solution

The fourth proportional to 998,492.80, 1,494,628.80 and 718,556.80 is: 1,075,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,492.80 : 1,494,628.80 = 718,556.80 : x
  2. Step 2: Convert to fraction form
    998,492.80/1,494,628.80 = 718,556.80/x
  3. Step 3: Cross multiply
    998,492.80x = 1,494,628.80 × 718,556.80
  4. Step 4: Simplify right side
    998,492.80x = 1,073,975,687,715.84
  5. Step 5: Solve for x
    x = 1,073,975,687,715.84/998,492.80
  6. Step 6: Final answer
    x = 1,075,596.83

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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.