Finding the Fourth Proportional to 1,036,718.05, 1,555,077.08 and 438,354.85
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Solution
The fourth proportional to 1,036,718.05, 1,555,077.08 and 438,354.85 is: 657,532.28
Step by Step Solution
- Step 1: Write the proportion equation
1,036,718.05 : 1,555,077.08 = 438,354.85 : x - Step 2: Convert to fraction form
1,036,718.05/1,555,077.08 = 438,354.85/x - Step 3: Cross multiply
1,036,718.05x = 1,555,077.08 × 438,354.85 - Step 4: Simplify right side
1,036,718.05x = 681,675,580,141.84 - Step 5: Solve for x
x = 681,675,580,141.84/1,036,718.05 - Step 6: Final answer
x = 657,532.28
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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.