Finding the Fourth Proportional to 1,247,569.74, 1,721,644.20 and 703,703.84
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Solution
The fourth proportional to 1,247,569.74, 1,721,644.20 and 703,703.84 is: 971,110.14
Step by Step Solution
- Step 1: Write the proportion equation
1,247,569.74 : 1,721,644.20 = 703,703.84 : x - Step 2: Convert to fraction form
1,247,569.74/1,721,644.20 = 703,703.84/x - Step 3: Cross multiply
1,247,569.74x = 1,721,644.20 × 703,703.84 - Step 4: Simplify right side
1,247,569.74x = 1,211,527,626,045.51 - Step 5: Solve for x
x = 1,211,527,626,045.51/1,247,569.74 - Step 6: Final answer
x = 971,110.14
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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.