Finding the Fourth Proportional to 1,554,418.80, 2,331,711.42 and 489,543.80
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Solution
The fourth proportional to 1,554,418.80, 2,331,711.42 and 489,543.80 is: 734,341.91
Step by Step Solution
- Step 1: Write the proportion equation
1,554,418.80 : 2,331,711.42 = 489,543.80 : x - Step 2: Convert to fraction form
1,554,418.80/2,331,711.42 = 489,543.80/x - Step 3: Cross multiply
1,554,418.80x = 2,331,711.42 × 489,543.80 - Step 4: Simplify right side
1,554,418.80x = 1,141,474,869,050.20 - Step 5: Solve for x
x = 1,141,474,869,050.20/1,554,418.80 - Step 6: Final answer
x = 734,341.91
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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.