Finding the Fourth Proportional to 1,687,535.80, 2,328,805.58 and 913,166.65
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Solution
The fourth proportional to 1,687,535.80, 2,328,805.58 and 913,166.65 is: 1,260,173.32
Step by Step Solution
- Step 1: Write the proportion equation
1,687,535.80 : 2,328,805.58 = 913,166.65 : x - Step 2: Convert to fraction form
1,687,535.80/2,328,805.58 = 913,166.65/x - Step 3: Cross multiply
1,687,535.80x = 2,328,805.58 × 913,166.65 - Step 4: Simplify right side
1,687,535.80x = 2,126,587,589,989.91 - Step 5: Solve for x
x = 2,126,587,589,989.91/1,687,535.80 - Step 6: Final answer
x = 1,260,173.32
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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.