Finding the Fourth Proportional to 711,584.84, 981,983.58 and 389,289.08
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Solution
The fourth proportional to 711,584.84, 981,983.58 and 389,289.08 is: 537,217.02
Step by Step Solution
- Step 1: Write the proportion equation
711,584.84 : 981,983.58 = 389,289.08 : x - Step 2: Convert to fraction form
711,584.84/981,983.58 = 389,289.08/x - Step 3: Cross multiply
711,584.84x = 981,983.58 × 389,289.08 - Step 4: Simplify right side
711,584.84x = 382,275,484,433.31 - Step 5: Solve for x
x = 382,275,484,433.31/711,584.84 - Step 6: Final answer
x = 537,217.02
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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.