Finding the Fourth Proportional to 627,768.86, 941,357.95 and 438,442.99
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Solution
The fourth proportional to 627,768.86, 941,357.95 and 438,442.99 is: 657,458.21
Step by Step Solution
- Step 1: Write the proportion equation
627,768.86 : 941,357.95 = 438,442.99 : x - Step 2: Convert to fraction form
627,768.86/941,357.95 = 438,442.99/x - Step 3: Cross multiply
627,768.86x = 941,357.95 × 438,442.99 - Step 4: Simplify right side
627,768.86x = 412,731,790,808.77 - Step 5: Solve for x
x = 412,731,790,808.77/627,768.86 - Step 6: Final answer
x = 657,458.21
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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.