Finding the Fourth Proportional to 1,431,119.36, 1,974,992.24 and 842,312.08
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Solution
The fourth proportional to 1,431,119.36, 1,974,992.24 and 842,312.08 is: 1,162,418.64
Step by Step Solution
- Step 1: Write the proportion equation
1,431,119.36 : 1,974,992.24 = 842,312.08 : x - Step 2: Convert to fraction form
1,431,119.36/1,974,992.24 = 842,312.08/x - Step 3: Cross multiply
1,431,119.36x = 1,974,992.24 × 842,312.08 - Step 4: Simplify right side
1,431,119.36x = 1,663,559,821,658.26 - Step 5: Solve for x
x = 1,663,559,821,658.26/1,431,119.36 - Step 6: Final answer
x = 1,162,418.64
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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.