Finding the Fourth Proportional to 658,919.38, 988,502.79 and 299,115.48
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Solution
The fourth proportional to 658,919.38, 988,502.79 and 299,115.48 is: 448,729.39
Step by Step Solution
- Step 1: Write the proportion equation
658,919.38 : 988,502.79 = 299,115.48 : x - Step 2: Convert to fraction form
658,919.38/988,502.79 = 299,115.48/x - Step 3: Cross multiply
658,919.38x = 988,502.79 × 299,115.48 - Step 4: Simplify right side
658,919.38x = 295,676,488,984.17 - Step 5: Solve for x
x = 295,676,488,984.17/658,919.38 - Step 6: Final answer
x = 448,729.39
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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.