Finding the Fourth Proportional to 1,442,302.98, 1,988,169.21 and 1,079,176.74
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Solution
The fourth proportional to 1,442,302.98, 1,988,169.21 and 1,079,176.74 is: 1,487,611.13
Step by Step Solution
- Step 1: Write the proportion equation
1,442,302.98 : 1,988,169.21 = 1,079,176.74 : x - Step 2: Convert to fraction form
1,442,302.98/1,988,169.21 = 1,079,176.74/x - Step 3: Cross multiply
1,442,302.98x = 1,988,169.21 × 1,079,176.74 - Step 4: Simplify right side
1,442,302.98x = 2,145,585,966,616.18 - Step 5: Solve for x
x = 2,145,585,966,616.18/1,442,302.98 - Step 6: Final answer
x = 1,487,611.13
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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.