Finding the Fourth Proportional to 918,167.80, 1,377,251.70 and 356,837.80
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Solution
The fourth proportional to 918,167.80, 1,377,251.70 and 356,837.80 is: 535,256.70
Step by Step Solution
- Step 1: Write the proportion equation
918,167.80 : 1,377,251.70 = 356,837.80 : x - Step 2: Convert to fraction form
918,167.80/1,377,251.70 = 356,837.80/x - Step 3: Cross multiply
918,167.80x = 1,377,251.70 × 356,837.80 - Step 4: Simplify right side
918,167.80x = 491,455,466,674.26 - Step 5: Solve for x
x = 491,455,466,674.26/918,167.80 - Step 6: Final answer
x = 535,256.70
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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.