Finding the Fourth Proportional to 1,544,448.81, 2,131,353.63 and 856,128.09
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Solution
The fourth proportional to 1,544,448.81, 2,131,353.63 and 856,128.09 is: 1,181,464.68
Step by Step Solution
- Step 1: Write the proportion equation
1,544,448.81 : 2,131,353.63 = 856,128.09 : x - Step 2: Convert to fraction form
1,544,448.81/2,131,353.63 = 856,128.09/x - Step 3: Cross multiply
1,544,448.81x = 2,131,353.63 × 856,128.09 - Step 4: Simplify right side
1,544,448.81x = 1,824,711,712,366.47 - Step 5: Solve for x
x = 1,824,711,712,366.47/1,544,448.81 - Step 6: Final answer
x = 1,181,464.68
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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.