Finding the Fourth Proportional to 1,351,239.66, 1,865,385.81 and 778,169.13
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Solution
The fourth proportional to 1,351,239.66, 1,865,385.81 and 778,169.13 is: 1,074,262.17
Step by Step Solution
- Step 1: Write the proportion equation
1,351,239.66 : 1,865,385.81 = 778,169.13 : x - Step 2: Convert to fraction form
1,351,239.66/1,865,385.81 = 778,169.13/x - Step 3: Cross multiply
1,351,239.66x = 1,865,385.81 × 778,169.13 - Step 4: Simplify right side
1,351,239.66x = 1,451,585,652,882.05 - Step 5: Solve for x
x = 1,451,585,652,882.05/1,351,239.66 - Step 6: Final answer
x = 1,074,262.17
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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.