Finding the Fourth Proportional to 782,539.02, 1,079,943.98 and 438,354.23
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Solution
The fourth proportional to 782,539.02, 1,079,943.98 and 438,354.23 is: 604,951.31
Step by Step Solution
- Step 1: Write the proportion equation
782,539.02 : 1,079,943.98 = 438,354.23 : x - Step 2: Convert to fraction form
782,539.02/1,079,943.98 = 438,354.23/x - Step 3: Cross multiply
782,539.02x = 1,079,943.98 × 438,354.23 - Step 4: Simplify right side
782,539.02x = 473,398,004,204.54 - Step 5: Solve for x
x = 473,398,004,204.54/782,539.02 - Step 6: Final answer
x = 604,951.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.