Finding the Fourth Proportional to 813,852.68, 1,123,130.20 and 451,291.82
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Solution
The fourth proportional to 813,852.68, 1,123,130.20 and 451,291.82 is: 622,790.20
Step by Step Solution
- Step 1: Write the proportion equation
813,852.68 : 1,123,130.20 = 451,291.82 : x - Step 2: Convert to fraction form
813,852.68/1,123,130.20 = 451,291.82/x - Step 3: Cross multiply
813,852.68x = 1,123,130.20 × 451,291.82 - Step 4: Simplify right side
813,852.68x = 506,859,472,054.96 - Step 5: Solve for x
x = 506,859,472,054.96/813,852.68 - Step 6: Final answer
x = 622,790.20
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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.