Finding the Fourth Proportional to 1,721,526.99, 2,371,939.92 and 1,139,763.12
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Solution
The fourth proportional to 1,721,526.99, 2,371,939.92 and 1,139,763.12 is: 1,570,378.89
Step by Step Solution
- Step 1: Write the proportion equation
1,721,526.99 : 2,371,939.92 = 1,139,763.12 : x - Step 2: Convert to fraction form
1,721,526.99/2,371,939.92 = 1,139,763.12/x - Step 3: Cross multiply
1,721,526.99x = 2,371,939.92 × 1,139,763.12 - Step 4: Simplify right side
1,721,526.99x = 2,703,449,643,671.75 - Step 5: Solve for x
x = 2,703,449,643,671.75/1,721,526.99 - Step 6: Final answer
x = 1,570,378.89
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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.