Finding the Fourth Proportional to 683,126.84, 942,711.42 and 396,717.32
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Solution
The fourth proportional to 683,126.84, 942,711.42 and 396,717.32 is: 547,467.80
Step by Step Solution
- Step 1: Write the proportion equation
683,126.84 : 942,711.42 = 396,717.32 : x - Step 2: Convert to fraction form
683,126.84/942,711.42 = 396,717.32/x - Step 3: Cross multiply
683,126.84x = 942,711.42 × 396,717.32 - Step 4: Simplify right side
683,126.84x = 373,989,948,075.79 - Step 5: Solve for x
x = 373,989,948,075.79/683,126.84 - Step 6: Final answer
x = 547,467.80
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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.