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Finding the Fourth Proportional to 450,823, 622,135.76 and 249,619

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Solution

The fourth proportional to 450,823, 622,135.76 and 249,619 is: 344,474.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,823 : 622,135.76 = 249,619 : x
  2. Step 2: Convert to fraction form
    450,823/622,135.76 = 249,619/x
  3. Step 3: Cross multiply
    450,823x = 622,135.76 × 249,619
  4. Step 4: Simplify right side
    450,823x = 155,296,906,275.44
  5. Step 5: Solve for x
    x = 155,296,906,275.44/450,823
  6. Step 6: Final answer
    x = 344,474.23

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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.