Finding the Fourth Proportional to 1,247,574.99, 1,721,651.45 and 703,709.13
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Solution
The fourth proportional to 1,247,574.99, 1,721,651.45 and 703,709.13 is: 971,117.45
Step by Step Solution
- Step 1: Write the proportion equation
1,247,574.99 : 1,721,651.45 = 703,709.13 : x - Step 2: Convert to fraction form
1,247,574.99/1,721,651.45 = 703,709.13/x - Step 3: Cross multiply
1,247,574.99x = 1,721,651.45 × 703,709.13 - Step 4: Simplify right side
1,247,574.99x = 1,211,541,840,524.19 - Step 5: Solve for x
x = 1,211,541,840,524.19/1,247,574.99 - Step 6: Final answer
x = 971,117.45
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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.