Finding the Fourth Proportional to 715,543.11, 987,461.01 and 409,618.26
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Solution
The fourth proportional to 715,543.11, 987,461.01 and 409,618.26 is: 565,279.79
Step by Step Solution
- Step 1: Write the proportion equation
715,543.11 : 987,461.01 = 409,618.26 : x - Step 2: Convert to fraction form
715,543.11/987,461.01 = 409,618.26/x - Step 3: Cross multiply
715,543.11x = 987,461.01 × 409,618.26 - Step 4: Simplify right side
715,543.11x = 404,482,060,734.04 - Step 5: Solve for x
x = 404,482,060,734.04/715,543.11 - Step 6: Final answer
x = 565,279.79
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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.