Finding the Fourth Proportional to 1,703,639.26, 2,351,024.16 and 978,627.40
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Solution
The fourth proportional to 1,703,639.26, 2,351,024.16 and 978,627.40 is: 1,350,506.95
Step by Step Solution
- Step 1: Write the proportion equation
1,703,639.26 : 2,351,024.16 = 978,627.40 : x - Step 2: Convert to fraction form
1,703,639.26/2,351,024.16 = 978,627.40/x - Step 3: Cross multiply
1,703,639.26x = 2,351,024.16 × 978,627.40 - Step 4: Simplify right side
1,703,639.26x = 2,300,776,661,037.98 - Step 5: Solve for x
x = 2,300,776,661,037.98/1,703,639.26 - Step 6: Final answer
x = 1,350,506.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.