Finding the Fourth Proportional to 1,073,420.09, 1,609,881.03 and 315,057.94
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Solution
The fourth proportional to 1,073,420.09, 1,609,881.03 and 315,057.94 is: 472,513.79
Step by Step Solution
- Step 1: Write the proportion equation
1,073,420.09 : 1,609,881.03 = 315,057.94 : x - Step 2: Convert to fraction form
1,073,420.09/1,609,881.03 = 315,057.94/x - Step 3: Cross multiply
1,073,420.09x = 1,609,881.03 × 315,057.94 - Step 4: Simplify right side
1,073,420.09x = 507,205,797,854.73 - Step 5: Solve for x
x = 507,205,797,854.73/1,073,420.09 - Step 6: Final answer
x = 472,513.79
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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.