Finding the Fourth Proportional to 1,284,412.47, 1,772,529.21 and 711,505.95
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Solution
The fourth proportional to 1,284,412.47, 1,772,529.21 and 711,505.95 is: 981,900.37
Step by Step Solution
- Step 1: Write the proportion equation
1,284,412.47 : 1,772,529.21 = 711,505.95 : x - Step 2: Convert to fraction form
1,284,412.47/1,772,529.21 = 711,505.95/x - Step 3: Cross multiply
1,284,412.47x = 1,772,529.21 × 711,505.95 - Step 4: Simplify right side
1,284,412.47x = 1,261,165,079,463.80 - Step 5: Solve for x
x = 1,261,165,079,463.80/1,284,412.47 - Step 6: Final answer
x = 981,900.37
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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.