Finding the Fourth Proportional to 790,628.58, 1,186,164.30 and 317,646.09
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Solution
The fourth proportional to 790,628.58, 1,186,164.30 and 317,646.09 is: 476,558.10
Step by Step Solution
- Step 1: Write the proportion equation
790,628.58 : 1,186,164.30 = 317,646.09 : x - Step 2: Convert to fraction form
790,628.58/1,186,164.30 = 317,646.09/x - Step 3: Cross multiply
790,628.58x = 1,186,164.30 × 317,646.09 - Step 4: Simplify right side
790,628.58x = 376,780,453,183.76 - Step 5: Solve for x
x = 376,780,453,183.76/790,628.58 - Step 6: Final answer
x = 476,558.10
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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.