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Finding the Fourth Proportional to 627,767.89, 866,329.55 and 341,289.07

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Solution

The fourth proportional to 627,767.89, 866,329.55 and 341,289.07 is: 470,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,767.89 : 866,329.55 = 341,289.07 : x
  2. Step 2: Convert to fraction form
    627,767.89/866,329.55 = 341,289.07/x
  3. Step 3: Cross multiply
    627,767.89x = 866,329.55 × 341,289.07
  4. Step 4: Simplify right side
    627,767.89x = 295,668,806,433.02
  5. Step 5: Solve for x
    x = 295,668,806,433.02/627,767.89
  6. Step 6: Final answer
    x = 470,984.28

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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.