Finding the Fourth Proportional to 815,696.18, 1,125,840.78 and 453,244.64
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Solution
The fourth proportional to 815,696.18, 1,125,840.78 and 453,244.64 is: 625,577.65
Step by Step Solution
- Step 1: Write the proportion equation
815,696.18 : 1,125,840.78 = 453,244.64 : x - Step 2: Convert to fraction form
815,696.18/1,125,840.78 = 453,244.64/x - Step 3: Cross multiply
815,696.18x = 1,125,840.78 × 453,244.64 - Step 4: Simplify right side
815,696.18x = 510,281,299,028.42 - Step 5: Solve for x
x = 510,281,299,028.42/815,696.18 - Step 6: Final answer
x = 625,577.65
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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.