Home / 1,039,728.60-1,559,741.67-320,131.19

Finding the Fourth Proportional to 1,039,728.60, 1,559,741.67 and 320,131.19

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Solution

The fourth proportional to 1,039,728.60, 1,559,741.67 and 320,131.19 is: 480,242.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,728.60 : 1,559,741.67 = 320,131.19 : x
  2. Step 2: Convert to fraction form
    1,039,728.60/1,559,741.67 = 320,131.19/x
  3. Step 3: Cross multiply
    1,039,728.60x = 1,559,741.67 × 320,131.19
  4. Step 4: Simplify right side
    1,039,728.60x = 499,321,949,110.98
  5. Step 5: Solve for x
    x = 499,321,949,110.98/1,039,728.60
  6. Step 6: Final answer
    x = 480,242.58

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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.