Finding the Fourth Proportional to 518,734.05, 715,858.44 and 292,379.55
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Solution
The fourth proportional to 518,734.05, 715,858.44 and 292,379.55 is: 403,486.85
Step by Step Solution
- Step 1: Write the proportion equation
518,734.05 : 715,858.44 = 292,379.55 : x - Step 2: Convert to fraction form
518,734.05/715,858.44 = 292,379.55/x - Step 3: Cross multiply
518,734.05x = 715,858.44 × 292,379.55 - Step 4: Simplify right side
518,734.05x = 209,302,368,550.90 - Step 5: Solve for x
x = 209,302,368,550.90/518,734.05 - Step 6: Final answer
x = 403,486.85
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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.