Finding the Fourth Proportional to 486,041.70, 729,062.55 and 276,089.70
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Solution
The fourth proportional to 486,041.70, 729,062.55 and 276,089.70 is: 414,134.55
Step by Step Solution
- Step 1: Write the proportion equation
486,041.70 : 729,062.55 = 276,089.70 : x - Step 2: Convert to fraction form
486,041.70/729,062.55 = 276,089.70/x - Step 3: Cross multiply
486,041.70x = 729,062.55 × 276,089.70 - Step 4: Simplify right side
486,041.70x = 201,286,660,710.74 - Step 5: Solve for x
x = 201,286,660,710.74/486,041.70 - Step 6: Final answer
x = 414,134.55
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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.