Finding the Fourth Proportional to 647,778.18, 893,935.44 and 361,316.82
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Solution
The fourth proportional to 647,778.18, 893,935.44 and 361,316.82 is: 498,618.08
Step by Step Solution
- Step 1: Write the proportion equation
647,778.18 : 893,935.44 = 361,316.82 : x - Step 2: Convert to fraction form
647,778.18/893,935.44 = 361,316.82/x - Step 3: Cross multiply
647,778.18x = 893,935.44 × 361,316.82 - Step 4: Simplify right side
647,778.18x = 322,993,910,466.10 - Step 5: Solve for x
x = 322,993,910,466.10/647,778.18 - Step 6: Final answer
x = 498,618.08
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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.