Home / 1,039,728.87-1,559,742.08-320,131.46

Finding the Fourth Proportional to 1,039,728.87, 1,559,742.08 and 320,131.46

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Solution

The fourth proportional to 1,039,728.87, 1,559,742.08 and 320,131.46 is: 480,243.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,728.87 : 1,559,742.08 = 320,131.46 : x
  2. Step 2: Convert to fraction form
    1,039,728.87/1,559,742.08 = 320,131.46/x
  3. Step 3: Cross multiply
    1,039,728.87x = 1,559,742.08 × 320,131.46
  4. Step 4: Simplify right side
    1,039,728.87x = 499,322,509,293.84
  5. Step 5: Solve for x
    x = 499,322,509,293.84/1,039,728.87
  6. Step 6: Final answer
    x = 480,243.00

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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.