Finding the Fourth Proportional to 1,151,539.20, 1,589,863.68 and 722,407.68
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Solution
The fourth proportional to 1,151,539.20, 1,589,863.68 and 722,407.68 is: 997,386.57
Step by Step Solution
- Step 1: Write the proportion equation
1,151,539.20 : 1,589,863.68 = 722,407.68 : x - Step 2: Convert to fraction form
1,151,539.20/1,589,863.68 = 722,407.68/x - Step 3: Cross multiply
1,151,539.20x = 1,589,863.68 × 722,407.68 - Step 4: Simplify right side
1,151,539.20x = 1,148,529,732,585.06 - Step 5: Solve for x
x = 1,148,529,732,585.06/1,151,539.20 - Step 6: Final answer
x = 997,386.57
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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.