Home / 3,218,686.40-4,821,031.20-1,954,308.80

Finding the Fourth Proportional to 3,218,686.40, 4,821,031.20 and 1,954,308.80

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Solution

The fourth proportional to 3,218,686.40, 4,821,031.20 and 1,954,308.80 is: 2,927,213.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218,686.40 : 4,821,031.20 = 1,954,308.80 : x
  2. Step 2: Convert to fraction form
    3,218,686.40/4,821,031.20 = 1,954,308.80/x
  3. Step 3: Cross multiply
    3,218,686.40x = 4,821,031.20 × 1,954,308.80
  4. Step 4: Simplify right side
    3,218,686.40x = 9,421,783,699,234.56
  5. Step 5: Solve for x
    x = 9,421,783,699,234.56/3,218,686.40
  6. Step 6: Final answer
    x = 2,927,213.94

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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.