Finding the Fourth Proportional to 1,543,567.16, 2,129,444.17 and 931,378.48
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Solution
The fourth proportional to 1,543,567.16, 2,129,444.17 and 931,378.48 is: 1,284,892.89
Step by Step Solution
- Step 1: Write the proportion equation
1,543,567.16 : 2,129,444.17 = 931,378.48 : x - Step 2: Convert to fraction form
1,543,567.16/2,129,444.17 = 931,378.48/x - Step 3: Cross multiply
1,543,567.16x = 2,129,444.17 × 931,378.48 - Step 4: Simplify right side
1,543,567.16x = 1,983,318,466,647.41 - Step 5: Solve for x
x = 1,983,318,466,647.41/1,543,567.16 - Step 6: Final answer
x = 1,284,892.89
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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.