Home / 1,322,129.84-1,824,558.84-718,518.32

Finding the Fourth Proportional to 1,322,129.84, 1,824,558.84 and 718,518.32

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Solution

The fourth proportional to 1,322,129.84, 1,824,558.84 and 718,518.32 is: 991,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,322,129.84 : 1,824,558.84 = 718,518.32 : x
  2. Step 2: Convert to fraction form
    1,322,129.84/1,824,558.84 = 718,518.32/x
  3. Step 3: Cross multiply
    1,322,129.84x = 1,824,558.84 × 718,518.32
  4. Step 4: Simplify right side
    1,322,129.84x = 1,310,978,952,457.95
  5. Step 5: Solve for x
    x = 1,310,978,952,457.95/1,322,129.84
  6. Step 6: Final answer
    x = 991,565.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.