Finding the Fourth Proportional to 918,471.42, 1,377,733.05 and 253,623.42
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Solution
The fourth proportional to 918,471.42, 1,377,733.05 and 253,623.42 is: 380,442.29
Step by Step Solution
- Step 1: Write the proportion equation
918,471.42 : 1,377,733.05 = 253,623.42 : x - Step 2: Convert to fraction form
918,471.42/1,377,733.05 = 253,623.42/x - Step 3: Cross multiply
918,471.42x = 1,377,733.05 × 253,623.42 - Step 4: Simplify right side
918,471.42x = 349,425,367,988.03 - Step 5: Solve for x
x = 349,425,367,988.03/918,471.42 - Step 6: Final answer
x = 380,442.29
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1.5x scale
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.