Finding the Fourth Proportional to 1,247,548.03, 1,721,487.13 and 921,034.80
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Solution
The fourth proportional to 1,247,548.03, 1,721,487.13 and 921,034.80 is: 1,270,932.68
Step by Step Solution
- Step 1: Write the proportion equation
1,247,548.03 : 1,721,487.13 = 921,034.80 : x - Step 2: Convert to fraction form
1,247,548.03/1,721,487.13 = 921,034.80/x - Step 3: Cross multiply
1,247,548.03x = 1,721,487.13 × 921,034.80 - Step 4: Simplify right side
1,247,548.03x = 1,585,549,552,179.54 - Step 5: Solve for x
x = 1,585,549,552,179.54/1,247,548.03 - Step 6: Final answer
x = 1,270,932.68
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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.