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Finding the Fourth Proportional to 622,995.89, 859,734.84 and 336,516.20

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Solution

The fourth proportional to 622,995.89, 859,734.84 and 336,516.20 is: 464,392.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,995.89 : 859,734.84 = 336,516.20 : x
  2. Step 2: Convert to fraction form
    622,995.89/859,734.84 = 336,516.20/x
  3. Step 3: Cross multiply
    622,995.89x = 859,734.84 × 336,516.20
  4. Step 4: Simplify right side
    622,995.89x = 289,314,697,065.73
  5. Step 5: Solve for x
    x = 289,314,697,065.73/622,995.89
  6. Step 6: Final answer
    x = 464,392.63

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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.