Finding the Fourth Proportional to 1,036,688.05, 1,555,032.08 and 438,324.85
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Solution
The fourth proportional to 1,036,688.05, 1,555,032.08 and 438,324.85 is: 657,487.28
Step by Step Solution
- Step 1: Write the proportion equation
1,036,688.05 : 1,555,032.08 = 438,324.85 : x - Step 2: Convert to fraction form
1,036,688.05/1,555,032.08 = 438,324.85/x - Step 3: Cross multiply
1,036,688.05x = 1,555,032.08 × 438,324.85 - Step 4: Simplify right side
1,036,688.05x = 681,609,203,211.19 - Step 5: Solve for x
x = 681,609,203,211.19/1,036,688.05 - Step 6: Final answer
x = 657,487.28
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1.5x scale
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.