Finding the Fourth Proportional to 683,381.98, 942,986.19 and 377,440.12
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Solution
The fourth proportional to 683,381.98, 942,986.19 and 377,440.12 is: 520,822.66
Step by Step Solution
- Step 1: Write the proportion equation
683,381.98 : 942,986.19 = 377,440.12 : x - Step 2: Convert to fraction form
683,381.98/942,986.19 = 377,440.12/x - Step 3: Cross multiply
683,381.98x = 942,986.19 × 377,440.12 - Step 4: Simplify right side
683,381.98x = 355,920,820,711.94 - Step 5: Solve for x
x = 355,920,820,711.94/683,381.98 - Step 6: Final answer
x = 520,822.66
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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.