Finding the Fourth Proportional to 1,431,852.37, 1,975,963.71 and 787,314.09
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Solution
The fourth proportional to 1,431,852.37, 1,975,963.71 and 787,314.09 is: 1,086,497.53
Step by Step Solution
- Step 1: Write the proportion equation
1,431,852.37 : 1,975,963.71 = 787,314.09 : x - Step 2: Convert to fraction form
1,431,852.37/1,975,963.71 = 787,314.09/x - Step 3: Cross multiply
1,431,852.37x = 1,975,963.71 × 787,314.09 - Step 4: Simplify right side
1,431,852.37x = 1,555,704,070,211.67 - Step 5: Solve for x
x = 1,555,704,070,211.67/1,431,852.37 - Step 6: Final answer
x = 1,086,497.53
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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.