Finding the Fourth Proportional to 1,431,646.08, 1,975,554.09 and 842,851.86
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Solution
The fourth proportional to 1,431,646.08, 1,975,554.09 and 842,851.86 is: 1,163,066.39
Step by Step Solution
- Step 1: Write the proportion equation
1,431,646.08 : 1,975,554.09 = 842,851.86 : x - Step 2: Convert to fraction form
1,431,646.08/1,975,554.09 = 842,851.86/x - Step 3: Cross multiply
1,431,646.08x = 1,975,554.09 × 842,851.86 - Step 4: Simplify right side
1,431,646.08x = 1,665,099,439,287.11 - Step 5: Solve for x
x = 1,665,099,439,287.11/1,431,646.08 - Step 6: Final answer
x = 1,163,066.39
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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.