Finding the Fourth Proportional to 726,149.70, 1,088,228.08 and 459,432.75
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Solution
The fourth proportional to 726,149.70, 1,088,228.08 and 459,432.75 is: 688,518.66
Step by Step Solution
- Step 1: Write the proportion equation
726,149.70 : 1,088,228.08 = 459,432.75 : x - Step 2: Convert to fraction form
726,149.70/1,088,228.08 = 459,432.75/x - Step 3: Cross multiply
726,149.70x = 1,088,228.08 × 459,432.75 - Step 4: Simplify right side
726,149.70x = 499,967,615,915.06 - Step 5: Solve for x
x = 499,967,615,915.06/726,149.70 - Step 6: Final answer
x = 688,518.66
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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.