Home / 1,322,403.20-1,983,604.80-325,131.20

Finding the Fourth Proportional to 1,322,403.20, 1,983,604.80 and 325,131.20

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Solution

The fourth proportional to 1,322,403.20, 1,983,604.80 and 325,131.20 is: 487,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,403.20 : 1,983,604.80 = 325,131.20 : x
  2. Step 2: Convert to fraction form
    1,322,403.20/1,983,604.80 = 325,131.20/x
  3. Step 3: Cross multiply
    1,322,403.20x = 1,983,604.80 × 325,131.20
  4. Step 4: Simplify right side
    1,322,403.20x = 644,931,808,949.76
  5. Step 5: Solve for x
    x = 644,931,808,949.76/1,322,403.20
  6. Step 6: Final answer
    x = 487,696.80

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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.