Finding the Fourth Proportional to 1,115,412.96, 1,672,868.16 and 316,678.08
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Solution
The fourth proportional to 1,115,412.96, 1,672,868.16 and 316,678.08 is: 474,945.78
Step by Step Solution
- Step 1: Write the proportion equation
1,115,412.96 : 1,672,868.16 = 316,678.08 : x - Step 2: Convert to fraction form
1,115,412.96/1,672,868.16 = 316,678.08/x - Step 3: Cross multiply
1,115,412.96x = 1,672,868.16 × 316,678.08 - Step 4: Simplify right side
1,115,412.96x = 529,760,677,001.93 - Step 5: Solve for x
x = 529,760,677,001.93/1,115,412.96 - Step 6: Final answer
x = 474,945.78
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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.