Finding the Fourth Proportional to 918,869.94, 1,375,355.97 and 491,337.90
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Solution
The fourth proportional to 918,869.94, 1,375,355.97 and 491,337.90 is: 735,429.99
Step by Step Solution
- Step 1: Write the proportion equation
918,869.94 : 1,375,355.97 = 491,337.90 : x - Step 2: Convert to fraction form
918,869.94/1,375,355.97 = 491,337.90/x - Step 3: Cross multiply
918,869.94x = 1,375,355.97 × 491,337.90 - Step 4: Simplify right side
918,869.94x = 675,764,514,052.26 - Step 5: Solve for x
x = 675,764,514,052.26/918,869.94 - Step 6: Final answer
x = 735,429.99
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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.