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Finding the Fourth Proportional to 447,064.20, 668,846.70 and 289,600.20

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Solution

The fourth proportional to 447,064.20, 668,846.70 and 289,600.20 is: 433,266.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,064.20 : 668,846.70 = 289,600.20 : x
  2. Step 2: Convert to fraction form
    447,064.20/668,846.70 = 289,600.20/x
  3. Step 3: Cross multiply
    447,064.20x = 668,846.70 × 289,600.20
  4. Step 4: Simplify right side
    447,064.20x = 193,698,138,089.34
  5. Step 5: Solve for x
    x = 193,698,138,089.34/447,064.20
  6. Step 6: Final answer
    x = 433,266.94

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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.