Finding the Fourth Proportional to 861,435.68, 1,292,158.38 and 767,103.08
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Solution
The fourth proportional to 861,435.68, 1,292,158.38 and 767,103.08 is: 1,150,658.95
Step by Step Solution
- Step 1: Write the proportion equation
861,435.68 : 1,292,158.38 = 767,103.08 : x - Step 2: Convert to fraction form
861,435.68/1,292,158.38 = 767,103.08/x - Step 3: Cross multiply
861,435.68x = 1,292,158.38 × 767,103.08 - Step 4: Simplify right side
861,435.68x = 991,218,673,145.81 - Step 5: Solve for x
x = 991,218,673,145.81/861,435.68 - Step 6: Final answer
x = 1,150,658.95
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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.