Finding the Fourth Proportional to 1,412,782.80, 1,949,612.68 and 768,197.36
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Solution
The fourth proportional to 1,412,782.80, 1,949,612.68 and 768,197.36 is: 1,060,097.36
Step by Step Solution
- Step 1: Write the proportion equation
1,412,782.80 : 1,949,612.68 = 768,197.36 : x - Step 2: Convert to fraction form
1,412,782.80/1,949,612.68 = 768,197.36/x - Step 3: Cross multiply
1,412,782.80x = 1,949,612.68 × 768,197.36 - Step 4: Simplify right side
1,412,782.80x = 1,497,687,313,798.52 - Step 5: Solve for x
x = 1,497,687,313,798.52/1,412,782.80 - Step 6: Final answer
x = 1,060,097.36
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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.