Finding the Fourth Proportional to 542,006.79, 812,716.97 and 430,404.99
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Solution
The fourth proportional to 542,006.79, 812,716.97 and 430,404.99 is: 645,374.64
Step by Step Solution
- Step 1: Write the proportion equation
542,006.79 : 812,716.97 = 430,404.99 : x - Step 2: Convert to fraction form
542,006.79/812,716.97 = 430,404.99/x - Step 3: Cross multiply
542,006.79x = 812,716.97 × 430,404.99 - Step 4: Simplify right side
542,006.79x = 349,797,437,193.66 - Step 5: Solve for x
x = 349,797,437,193.66/542,006.79 - Step 6: Final answer
x = 645,374.64
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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.