Finding the Fourth Proportional to 1,078,632.67, 1,618,567.21 and 438,818.33
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Solution
The fourth proportional to 1,078,632.67, 1,618,567.21 and 438,818.33 is: 658,478.99
Step by Step Solution
- Step 1: Write the proportion equation
1,078,632.67 : 1,618,567.21 = 438,818.33 : x - Step 2: Convert to fraction form
1,078,632.67/1,618,567.21 = 438,818.33/x - Step 3: Cross multiply
1,078,632.67x = 1,618,567.21 × 438,818.33 - Step 4: Simplify right side
1,078,632.67x = 710,256,956,141.92 - Step 5: Solve for x
x = 710,256,956,141.92/1,078,632.67 - Step 6: Final answer
x = 658,478.99
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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.