Finding the Fourth Proportional to 655,838.60, 905,121.81 and 383,890.01
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Solution
The fourth proportional to 655,838.60, 905,121.81 and 383,890.01 is: 529,805.99
Step by Step Solution
- Step 1: Write the proportion equation
655,838.60 : 905,121.81 = 383,890.01 : x - Step 2: Convert to fraction form
655,838.60/905,121.81 = 383,890.01/x - Step 3: Cross multiply
655,838.60x = 905,121.81 × 383,890.01 - Step 4: Simplify right side
655,838.60x = 347,467,216,166.51 - Step 5: Solve for x
x = 347,467,216,166.51/655,838.60 - Step 6: Final answer
x = 529,805.99
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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.