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Finding the Fourth Proportional to 450,991, 622,387.38 and 249,787

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Solution

The fourth proportional to 450,991, 622,387.38 and 249,787 is: 344,717.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,991 : 622,387.38 = 249,787 : x
  2. Step 2: Convert to fraction form
    450,991/622,387.38 = 249,787/x
  3. Step 3: Cross multiply
    450,991x = 622,387.38 × 249,787
  4. Step 4: Simplify right side
    450,991x = 155,464,276,488.06
  5. Step 5: Solve for x
    x = 155,464,276,488.06/450,991
  6. Step 6: Final answer
    x = 344,717.03

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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.