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Finding the Fourth Proportional to 450,245, 621,357.54 and 249,041

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Solution

The fourth proportional to 450,245, 621,357.54 and 249,041 is: 343,687.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,245 : 621,357.54 = 249,041 : x
  2. Step 2: Convert to fraction form
    450,245/621,357.54 = 249,041/x
  3. Step 3: Cross multiply
    450,245x = 621,357.54 × 249,041
  4. Step 4: Simplify right side
    450,245x = 154,743,503,119.14
  5. Step 5: Solve for x
    x = 154,743,503,119.14/450,245
  6. Step 6: Final answer
    x = 343,687.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.