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Finding the Fourth Proportional to 450,908, 622,298.40 and 249,704

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Solution

The fourth proportional to 450,908, 622,298.40 and 249,704 is: 344,616.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,908 : 622,298.40 = 249,704 : x
  2. Step 2: Convert to fraction form
    450,908/622,298.40 = 249,704/x
  3. Step 3: Cross multiply
    450,908x = 622,298.40 × 249,704
  4. Step 4: Simplify right side
    450,908x = 155,390,399,673.60
  5. Step 5: Solve for x
    x = 155,390,399,673.60/450,908
  6. Step 6: Final answer
    x = 344,616.64

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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.