Finding the Fourth Proportional to 676,928.48, 934,129.16 and 405,146.08
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Solution
The fourth proportional to 676,928.48, 934,129.16 and 405,146.08 is: 559,082.35
Step by Step Solution
- Step 1: Write the proportion equation
676,928.48 : 934,129.16 = 405,146.08 : x - Step 2: Convert to fraction form
676,928.48/934,129.16 = 405,146.08/x - Step 3: Cross multiply
676,928.48x = 934,129.16 × 405,146.08 - Step 4: Simplify right side
676,928.48x = 378,458,767,387.69 - Step 5: Solve for x
x = 378,458,767,387.69/676,928.48 - Step 6: Final answer
x = 559,082.35
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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.