Home / 1,428,619.64-2,143,530.64-889,327.32

Finding the Fourth Proportional to 1,428,619.64, 2,143,530.64 and 889,327.32

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Solution

The fourth proportional to 1,428,619.64, 2,143,530.64 and 889,327.32 is: 1,334,365.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,619.64 : 2,143,530.64 = 889,327.32 : x
  2. Step 2: Convert to fraction form
    1,428,619.64/2,143,530.64 = 889,327.32/x
  3. Step 3: Cross multiply
    1,428,619.64x = 2,143,530.64 × 889,327.32
  4. Step 4: Simplify right side
    1,428,619.64x = 1,906,300,359,409.08
  5. Step 5: Solve for x
    x = 1,906,300,359,409.08/1,428,619.64
  6. Step 6: Final answer
    x = 1,334,365.22

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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.