Finding the Fourth Proportional to 667,021.36, 920,482.48 and 361,090.88
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Solution
The fourth proportional to 667,021.36, 920,482.48 and 361,090.88 is: 498,301.63
Step by Step Solution
- Step 1: Write the proportion equation
667,021.36 : 920,482.48 = 361,090.88 : x - Step 2: Convert to fraction form
667,021.36/920,482.48 = 361,090.88/x - Step 3: Cross multiply
667,021.36x = 920,482.48 × 361,090.88 - Step 4: Simplify right side
667,021.36x = 332,377,828,727.78 - Step 5: Solve for x
x = 332,377,828,727.78/667,021.36 - Step 6: Final answer
x = 498,301.63
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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.