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Finding the Fourth Proportional to 447,553, 670,782.30 and 210,580.84

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Solution

The fourth proportional to 447,553, 670,782.30 and 210,580.84 is: 315,613.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,553 : 670,782.30 = 210,580.84 : x
  2. Step 2: Convert to fraction form
    447,553/670,782.30 = 210,580.84/x
  3. Step 3: Cross multiply
    447,553x = 670,782.30 × 210,580.84
  4. Step 4: Simplify right side
    447,553x = 141,253,900,191.13
  5. Step 5: Solve for x
    x = 141,253,900,191.13/447,553
  6. Step 6: Final answer
    x = 315,613.79

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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.