Finding the Fourth Proportional to 971,678.12, 1,340,917.61 and 541,986.08
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Solution
The fourth proportional to 971,678.12, 1,340,917.61 and 541,986.08 is: 747,941.79
Step by Step Solution
- Step 1: Write the proportion equation
971,678.12 : 1,340,917.61 = 541,986.08 : x - Step 2: Convert to fraction form
971,678.12/1,340,917.61 = 541,986.08/x - Step 3: Cross multiply
971,678.12x = 1,340,917.61 × 541,986.08 - Step 4: Simplify right side
971,678.12x = 726,758,669,632.35 - Step 5: Solve for x
x = 726,758,669,632.35/971,678.12 - Step 6: Final answer
x = 747,941.79
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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.