Finding the Fourth Proportional to 715,543.67, 987,461.79 and 409,618.82
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Solution
The fourth proportional to 715,543.67, 987,461.79 and 409,618.82 is: 565,280.57
Step by Step Solution
- Step 1: Write the proportion equation
715,543.67 : 987,461.79 = 409,618.82 : x - Step 2: Convert to fraction form
715,543.67/987,461.79 = 409,618.82/x - Step 3: Cross multiply
715,543.67x = 987,461.79 × 409,618.82 - Step 4: Simplify right side
715,543.67x = 404,482,934,147.47 - Step 5: Solve for x
x = 404,482,934,147.47/715,543.67 - Step 6: Final answer
x = 565,280.57
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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.