Finding the Fourth Proportional to 683,348.57, 943,203.41 and 392,991.84
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Solution
The fourth proportional to 683,348.57, 943,203.41 and 392,991.84 is: 542,433.63
Step by Step Solution
- Step 1: Write the proportion equation
683,348.57 : 943,203.41 = 392,991.84 : x - Step 2: Convert to fraction form
683,348.57/943,203.41 = 392,991.84/x - Step 3: Cross multiply
683,348.57x = 943,203.41 × 392,991.84 - Step 4: Simplify right side
683,348.57x = 370,671,241,625.22 - Step 5: Solve for x
x = 370,671,241,625.22/683,348.57 - Step 6: Final answer
x = 542,433.63
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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.