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Finding the Fourth Proportional to 450,849, 622,216.98 and 249,645

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Solution

The fourth proportional to 450,849, 622,216.98 and 249,645 is: 344,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,849 : 622,216.98 = 249,645 : x
  2. Step 2: Convert to fraction form
    450,849/622,216.98 = 249,645/x
  3. Step 3: Cross multiply
    450,849x = 622,216.98 × 249,645
  4. Step 4: Simplify right side
    450,849x = 155,333,357,972.10
  5. Step 5: Solve for x
    x = 155,333,357,972.10/450,849
  6. Step 6: Final answer
    x = 344,535.22

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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.