Finding the Fourth Proportional to 815,444.16, 1,222,681.68 and 310,042.14
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Solution
The fourth proportional to 815,444.16, 1,222,681.68 and 310,042.14 is: 464,878.97
Step by Step Solution
- Step 1: Write the proportion equation
815,444.16 : 1,222,681.68 = 310,042.14 : x - Step 2: Convert to fraction form
815,444.16/1,222,681.68 = 310,042.14/x - Step 3: Cross multiply
815,444.16x = 1,222,681.68 × 310,042.14 - Step 4: Simplify right side
815,444.16x = 379,082,844,606.00 - Step 5: Solve for x
x = 379,082,844,606.00/815,444.16 - Step 6: Final answer
x = 464,878.97
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1.5x scale
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.