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Finding the Fourth Proportional to 450,792, 622,112.40 and 249,588

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Solution

The fourth proportional to 450,792, 622,112.40 and 249,588 is: 344,442.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,792 : 622,112.40 = 249,588 : x
  2. Step 2: Convert to fraction form
    450,792/622,112.40 = 249,588/x
  3. Step 3: Cross multiply
    450,792x = 622,112.40 × 249,588
  4. Step 4: Simplify right side
    450,792x = 155,271,789,691.20
  5. Step 5: Solve for x
    x = 155,271,789,691.20/450,792
  6. Step 6: Final answer
    x = 344,442.20

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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.