Finding the Fourth Proportional to 782,309.33, 1,079,497.58 and 438,097.40
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Solution
The fourth proportional to 782,309.33, 1,079,497.58 and 438,097.40 is: 604,524.41
Step by Step Solution
- Step 1: Write the proportion equation
782,309.33 : 1,079,497.58 = 438,097.40 : x - Step 2: Convert to fraction form
782,309.33/1,079,497.58 = 438,097.40/x - Step 3: Cross multiply
782,309.33x = 1,079,497.58 × 438,097.40 - Step 4: Simplify right side
782,309.33x = 472,925,083,104.29 - Step 5: Solve for x
x = 472,925,083,104.29/782,309.33 - Step 6: Final answer
x = 604,524.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.