Finding the Fourth Proportional to 1,086,286.80, 1,630,985.40 and 613,894.80
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Solution
The fourth proportional to 1,086,286.80, 1,630,985.40 and 613,894.80 is: 921,721.09
Step by Step Solution
- Step 1: Write the proportion equation
1,086,286.80 : 1,630,985.40 = 613,894.80 : x - Step 2: Convert to fraction form
1,086,286.80/1,630,985.40 = 613,894.80/x - Step 3: Cross multiply
1,086,286.80x = 1,630,985.40 × 613,894.80 - Step 4: Simplify right side
1,086,286.80x = 1,001,253,455,935.92 - Step 5: Solve for x
x = 1,001,253,455,935.92/1,086,286.80 - Step 6: Final answer
x = 921,721.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.