Finding the Fourth Proportional to 1,328,805.09, 1,993,470.26 and 487,364.13
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Solution
The fourth proportional to 1,328,805.09, 1,993,470.26 and 487,364.13 is: 731,142.52
Step by Step Solution
- Step 1: Write the proportion equation
1,328,805.09 : 1,993,470.26 = 487,364.13 : x - Step 2: Convert to fraction form
1,328,805.09/1,993,470.26 = 487,364.13/x - Step 3: Cross multiply
1,328,805.09x = 1,993,470.26 × 487,364.13 - Step 4: Simplify right side
1,328,805.09x = 971,545,896,508.95 - Step 5: Solve for x
x = 971,545,896,508.95/1,328,805.09 - Step 6: Final answer
x = 731,142.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.