Finding the Fourth Proportional to 663,117.95, 993,968.72 and 378,195.09
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Solution
The fourth proportional to 663,117.95, 993,968.72 and 378,195.09 is: 566,888.72
Step by Step Solution
- Step 1: Write the proportion equation
663,117.95 : 993,968.72 = 378,195.09 : x - Step 2: Convert to fraction form
663,117.95/993,968.72 = 378,195.09/x - Step 3: Cross multiply
663,117.95x = 993,968.72 × 378,195.09 - Step 4: Simplify right side
663,117.95x = 375,914,085,317.46 - Step 5: Solve for x
x = 375,914,085,317.46/663,117.95 - Step 6: Final answer
x = 566,888.72
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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.