Finding the Fourth Proportional to 1,343,639.13, 1,854,184.63 and 731,778.49
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Solution
The fourth proportional to 1,343,639.13, 1,854,184.63 and 731,778.49 is: 1,009,833.96
Step by Step Solution
- Step 1: Write the proportion equation
1,343,639.13 : 1,854,184.63 = 731,778.49 : x - Step 2: Convert to fraction form
1,343,639.13/1,854,184.63 = 731,778.49/x - Step 3: Cross multiply
1,343,639.13x = 1,854,184.63 × 731,778.49 - Step 4: Simplify right side
1,343,639.13x = 1,356,852,428,722.61 - Step 5: Solve for x
x = 1,356,852,428,722.61/1,343,639.13 - Step 6: Final answer
x = 1,009,833.96
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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.