Finding the Fourth Proportional to 1,543,290.17, 2,129,032.76 and 999,600.75
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Solution
The fourth proportional to 1,543,290.17, 2,129,032.76 and 999,600.75 is: 1,378,990.67
Step by Step Solution
- Step 1: Write the proportion equation
1,543,290.17 : 2,129,032.76 = 999,600.75 : x - Step 2: Convert to fraction form
1,543,290.17/2,129,032.76 = 999,600.75/x - Step 3: Cross multiply
1,543,290.17x = 2,129,032.76 × 999,600.75 - Step 4: Simplify right side
1,543,290.17x = 2,128,182,738,672.57 - Step 5: Solve for x
x = 2,128,182,738,672.57/1,543,290.17 - Step 6: Final answer
x = 1,378,990.67
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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.