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Finding the Fourth Proportional to 608,069.89, 912,123.38 and 208,704.97

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Solution

The fourth proportional to 608,069.89, 912,123.38 and 208,704.97 is: 313,063.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,069.89 : 912,123.38 = 208,704.97 : x
  2. Step 2: Convert to fraction form
    608,069.89/912,123.38 = 208,704.97/x
  3. Step 3: Cross multiply
    608,069.89x = 912,123.38 × 208,704.97
  4. Step 4: Simplify right side
    608,069.89x = 190,364,682,659.20
  5. Step 5: Solve for x
    x = 190,364,682,659.20/608,069.89
  6. Step 6: Final answer
    x = 313,063.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.