Finding the Fourth Proportional to 1,431,470.16, 1,975,431.12 and 786,894.42
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Solution
The fourth proportional to 1,431,470.16, 1,975,431.12 and 786,894.42 is: 1,085,915.56
Step by Step Solution
- Step 1: Write the proportion equation
1,431,470.16 : 1,975,431.12 = 786,894.42 : x - Step 2: Convert to fraction form
1,431,470.16/1,975,431.12 = 786,894.42/x - Step 3: Cross multiply
1,431,470.16x = 1,975,431.12 × 786,894.42 - Step 4: Simplify right side
1,431,470.16x = 1,554,455,725,422.35 - Step 5: Solve for x
x = 1,554,455,725,422.35/1,431,470.16 - Step 6: Final answer
x = 1,085,915.56
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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.