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Finding the Fourth Proportional to 447,064.70, 668,847.45 and 289,600.70

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Solution

The fourth proportional to 447,064.70, 668,847.45 and 289,600.70 is: 433,267.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,064.70 : 668,847.45 = 289,600.70 : x
  2. Step 2: Convert to fraction form
    447,064.70/668,847.45 = 289,600.70/x
  3. Step 3: Cross multiply
    447,064.70x = 668,847.45 × 289,600.70
  4. Step 4: Simplify right side
    447,064.70x = 193,698,689,713.22
  5. Step 5: Solve for x
    x = 193,698,689,713.22/447,064.70
  6. Step 6: Final answer
    x = 433,267.69

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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.