Finding the Fourth Proportional to 815,697.41, 1,125,631.14 and 453,144.06
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Solution
The fourth proportional to 815,697.41, 1,125,631.14 and 453,144.06 is: 625,321.43
Step by Step Solution
- Step 1: Write the proportion equation
815,697.41 : 1,125,631.14 = 453,144.06 : x - Step 2: Convert to fraction form
815,697.41/1,125,631.14 = 453,144.06/x - Step 3: Cross multiply
815,697.41x = 1,125,631.14 × 453,144.06 - Step 4: Simplify right side
815,697.41x = 510,073,064,842.03 - Step 5: Solve for x
x = 510,073,064,842.03/815,697.41 - Step 6: Final answer
x = 625,321.43
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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.