Finding the Fourth Proportional to 1,403,639.52, 1,936,990.17 and 830,689.26
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Solution
The fourth proportional to 1,403,639.52, 1,936,990.17 and 830,689.26 is: 1,146,332.02
Step by Step Solution
- Step 1: Write the proportion equation
1,403,639.52 : 1,936,990.17 = 830,689.26 : x - Step 2: Convert to fraction form
1,403,639.52/1,936,990.17 = 830,689.26/x - Step 3: Cross multiply
1,403,639.52x = 1,936,990.17 × 830,689.26 - Step 4: Simplify right side
1,403,639.52x = 1,609,036,930,944.57 - Step 5: Solve for x
x = 1,609,036,930,944.57/1,403,639.52 - Step 6: Final answer
x = 1,146,332.02
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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.