Finding the Fourth Proportional to 402,921.20, 604,576.20 and 284,337.20
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Solution
The fourth proportional to 402,921.20, 604,576.20 and 284,337.20 is: 426,642.99
Step by Step Solution
- Step 1: Write the proportion equation
402,921.20 : 604,576.20 = 284,337.20 : x - Step 2: Convert to fraction form
402,921.20/604,576.20 = 284,337.20/x - Step 3: Cross multiply
402,921.20x = 604,576.20 × 284,337.20 - Step 4: Simplify right side
402,921.20x = 171,903,503,894.64 - Step 5: Solve for x
x = 171,903,503,894.64/402,921.20 - Step 6: Final answer
x = 426,642.99
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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.