Finding the Fourth Proportional to 690,662.74, 1,036,135.05 and 291,302.77
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Solution
The fourth proportional to 690,662.74, 1,036,135.05 and 291,302.77 is: 437,013.60
Step by Step Solution
- Step 1: Write the proportion equation
690,662.74 : 1,036,135.05 = 291,302.77 : x - Step 2: Convert to fraction form
690,662.74/1,036,135.05 = 291,302.77/x - Step 3: Cross multiply
690,662.74x = 1,036,135.05 × 291,302.77 - Step 4: Simplify right side
690,662.74x = 301,829,010,159.09 - Step 5: Solve for x
x = 301,829,010,159.09/690,662.74 - Step 6: Final answer
x = 437,013.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.