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Finding the Fourth Proportional to 644,015.70, 967,060.35 and 486,422.10

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Solution

The fourth proportional to 644,015.70, 967,060.35 and 486,422.10 is: 730,416.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,015.70 : 967,060.35 = 486,422.10 : x
  2. Step 2: Convert to fraction form
    644,015.70/967,060.35 = 486,422.10/x
  3. Step 3: Cross multiply
    644,015.70x = 967,060.35 × 486,422.10
  4. Step 4: Simplify right side
    644,015.70x = 470,399,526,273.74
  5. Step 5: Solve for x
    x = 470,399,526,273.74/644,015.70
  6. Step 6: Final answer
    x = 730,416.24

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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.