Finding the Fourth Proportional to 515,226.80, 771,803.40 and 347,265.20
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Solution
The fourth proportional to 515,226.80, 771,803.40 and 347,265.20 is: 520,198.99
Step by Step Solution
- Step 1: Write the proportion equation
515,226.80 : 771,803.40 = 347,265.20 : x - Step 2: Convert to fraction form
515,226.80/771,803.40 = 347,265.20/x - Step 3: Cross multiply
515,226.80x = 771,803.40 × 347,265.20 - Step 4: Simplify right side
515,226.80x = 268,020,462,061.68 - Step 5: Solve for x
x = 268,020,462,061.68/515,226.80 - Step 6: Final answer
x = 520,198.99
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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.