Finding the Fourth Proportional to 813,892.80, 1,123,035.20 and 542,366.08
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Solution
The fourth proportional to 813,892.80, 1,123,035.20 and 542,366.08 is: 748,373.99
Step by Step Solution
- Step 1: Write the proportion equation
813,892.80 : 1,123,035.20 = 542,366.08 : x - Step 2: Convert to fraction form
813,892.80/1,123,035.20 = 542,366.08/x - Step 3: Cross multiply
813,892.80x = 1,123,035.20 × 542,366.08 - Step 4: Simplify right side
813,892.80x = 609,096,199,126.02 - Step 5: Solve for x
x = 609,096,199,126.02/813,892.80 - Step 6: Final answer
x = 748,373.99
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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.