Finding the Fourth Proportional to 719,845.84, 993,394.76 and 397,564.12
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Solution
The fourth proportional to 719,845.84, 993,394.76 and 397,564.12 is: 548,642.63
Step by Step Solution
- Step 1: Write the proportion equation
719,845.84 : 993,394.76 = 397,564.12 : x - Step 2: Convert to fraction form
719,845.84/993,394.76 = 397,564.12/x - Step 3: Cross multiply
719,845.84x = 993,394.76 × 397,564.12 - Step 4: Simplify right side
719,845.84x = 394,938,113,572.01 - Step 5: Solve for x
x = 394,938,113,572.01/719,845.84 - Step 6: Final answer
x = 548,642.63
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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.