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Finding the Fourth Proportional to 644,548.39, 967,143.34 and 487,738.87

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Solution

The fourth proportional to 644,548.39, 967,143.34 and 487,738.87 is: 731,851.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,548.39 : 967,143.34 = 487,738.87 : x
  2. Step 2: Convert to fraction form
    644,548.39/967,143.34 = 487,738.87/x
  3. Step 3: Cross multiply
    644,548.39x = 967,143.34 × 487,738.87
  4. Step 4: Simplify right side
    644,548.39x = 471,713,397,971.44
  5. Step 5: Solve for x
    x = 471,713,397,971.44/644,548.39
  6. Step 6: Final answer
    x = 731,851.02

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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.