Home / 649,556.40-973,816.20-275,271.60

Finding the Fourth Proportional to 649,556.40, 973,816.20 and 275,271.60

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Solution

The fourth proportional to 649,556.40, 973,816.20 and 275,271.60 is: 412,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,556.40 : 973,816.20 = 275,271.60 : x
  2. Step 2: Convert to fraction form
    649,556.40/973,816.20 = 275,271.60/x
  3. Step 3: Cross multiply
    649,556.40x = 973,816.20 × 275,271.60
  4. Step 4: Simplify right side
    649,556.40x = 268,063,943,479.92
  5. Step 5: Solve for x
    x = 268,063,943,479.92/649,556.40
  6. Step 6: Final answer
    x = 412,687.71

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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.