Finding the Fourth Proportional to 1,385,376.14, 1,911,937.26 and 773,647.09
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Solution
The fourth proportional to 1,385,376.14, 1,911,937.26 and 773,647.09 is: 1,067,698.98
Step by Step Solution
- Step 1: Write the proportion equation
1,385,376.14 : 1,911,937.26 = 773,647.09 : x - Step 2: Convert to fraction form
1,385,376.14/1,911,937.26 = 773,647.09/x - Step 3: Cross multiply
1,385,376.14x = 1,911,937.26 × 773,647.09 - Step 4: Simplify right side
1,385,376.14x = 1,479,164,695,582.91 - Step 5: Solve for x
x = 1,479,164,695,582.91/1,385,376.14 - Step 6: Final answer
x = 1,067,698.98
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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.