Finding the Fourth Proportional to 815,696.30, 1,125,840.81 and 453,244.70
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Solution
The fourth proportional to 815,696.30, 1,125,840.81 and 453,244.70 is: 625,577.66
Step by Step Solution
- Step 1: Write the proportion equation
815,696.30 : 1,125,840.81 = 453,244.70 : x - Step 2: Convert to fraction form
815,696.30/1,125,840.81 = 453,244.70/x - Step 3: Cross multiply
815,696.30x = 1,125,840.81 × 453,244.70 - Step 4: Simplify right side
815,696.30x = 510,281,380,176.21 - Step 5: Solve for x
x = 510,281,380,176.21/815,696.30 - Step 6: Final answer
x = 625,577.66
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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.