Finding the Fourth Proportional to 1,554,418.81, 2,331,711.42 and 489,543.79
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Solution
The fourth proportional to 1,554,418.81, 2,331,711.42 and 489,543.79 is: 734,341.89
Step by Step Solution
- Step 1: Write the proportion equation
1,554,418.81 : 2,331,711.42 = 489,543.79 : x - Step 2: Convert to fraction form
1,554,418.81/2,331,711.42 = 489,543.79/x - Step 3: Cross multiply
1,554,418.81x = 2,331,711.42 × 489,543.79 - Step 4: Simplify right side
1,554,418.81x = 1,141,474,845,733.08 - Step 5: Solve for x
x = 1,141,474,845,733.08/1,554,418.81 - Step 6: Final answer
x = 734,341.89
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1.5x scale
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.