Finding the Fourth Proportional to 1,284,257.94, 1,772,271.45 and 740,391.09
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Solution
The fourth proportional to 1,284,257.94, 1,772,271.45 and 740,391.09 is: 1,021,737.11
Step by Step Solution
- Step 1: Write the proportion equation
1,284,257.94 : 1,772,271.45 = 740,391.09 : x - Step 2: Convert to fraction form
1,284,257.94/1,772,271.45 = 740,391.09/x - Step 3: Cross multiply
1,284,257.94x = 1,772,271.45 × 740,391.09 - Step 4: Simplify right side
1,284,257.94x = 1,312,173,990,641.38 - Step 5: Solve for x
x = 1,312,173,990,641.38/1,284,257.94 - Step 6: Final answer
x = 1,021,737.11
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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.