Finding the Fourth Proportional to 815,332.13, 1,125,120.60 and 452,779.14
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Solution
The fourth proportional to 815,332.13, 1,125,120.60 and 452,779.14 is: 624,814.26
Step by Step Solution
- Step 1: Write the proportion equation
815,332.13 : 1,125,120.60 = 452,779.14 : x - Step 2: Convert to fraction form
815,332.13/1,125,120.60 = 452,779.14/x - Step 3: Cross multiply
815,332.13x = 1,125,120.60 × 452,779.14 - Step 4: Simplify right side
815,332.13x = 509,431,137,664.28 - Step 5: Solve for x
x = 509,431,137,664.28/815,332.13 - Step 6: Final answer
x = 624,814.26
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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.