Finding the Fourth Proportional to 1,007,884.53, 1,390,880.79 and 555,175.53
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Solution
The fourth proportional to 1,007,884.53, 1,390,880.79 and 555,175.53 is: 766,142.31
Step by Step Solution
- Step 1: Write the proportion equation
1,007,884.53 : 1,390,880.79 = 555,175.53 : x - Step 2: Convert to fraction form
1,007,884.53/1,390,880.79 = 555,175.53/x - Step 3: Cross multiply
1,007,884.53x = 1,390,880.79 × 555,175.53 - Step 4: Simplify right side
1,007,884.53x = 772,182,979,755.07 - Step 5: Solve for x
x = 772,182,979,755.07/1,007,884.53 - Step 6: Final answer
x = 766,142.31
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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.