Finding the Fourth Proportional to 542,817.63, 812,939.36 and 430,135.52
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Solution
The fourth proportional to 542,817.63, 812,939.36 and 430,135.52 is: 644,183.37
Step by Step Solution
- Step 1: Write the proportion equation
542,817.63 : 812,939.36 = 430,135.52 : x - Step 2: Convert to fraction form
542,817.63/812,939.36 = 430,135.52/x - Step 3: Cross multiply
542,817.63x = 812,939.36 × 430,135.52 - Step 4: Simplify right side
542,817.63x = 349,674,088,126.69 - Step 5: Solve for x
x = 349,674,088,126.69/542,817.63 - Step 6: Final answer
x = 644,183.37
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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.