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Finding the Fourth Proportional to 488,961.75, 674,907.95 and 295,338.69

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Solution

The fourth proportional to 488,961.75, 674,907.95 and 295,338.69 is: 407,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,961.75 : 674,907.95 = 295,338.69 : x
  2. Step 2: Convert to fraction form
    488,961.75/674,907.95 = 295,338.69/x
  3. Step 3: Cross multiply
    488,961.75x = 674,907.95 × 295,338.69
  4. Step 4: Simplify right side
    488,961.75x = 199,326,428,900.65
  5. Step 5: Solve for x
    x = 199,326,428,900.65/488,961.75
  6. Step 6: Final answer
    x = 407,652.40

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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.