Finding the Fourth Proportional to 1,116,918.99, 1,675,101.71 and 318,207.47
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Solution
The fourth proportional to 1,116,918.99, 1,675,101.71 and 318,207.47 is: 477,232.34
Step by Step Solution
- Step 1: Write the proportion equation
1,116,918.99 : 1,675,101.71 = 318,207.47 : x - Step 2: Convert to fraction form
1,116,918.99/1,675,101.71 = 318,207.47/x - Step 3: Cross multiply
1,116,918.99x = 1,675,101.71 × 318,207.47 - Step 4: Simplify right side
1,116,918.99x = 533,029,867,165.23 - Step 5: Solve for x
x = 533,029,867,165.23/1,116,918.99 - Step 6: Final answer
x = 477,232.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.