Finding the Fourth Proportional to 402,688.20, 604,226.70 and 284,104.20
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Solution
The fourth proportional to 402,688.20, 604,226.70 and 284,104.20 is: 426,293.45
Step by Step Solution
- Step 1: Write the proportion equation
402,688.20 : 604,226.70 = 284,104.20 : x - Step 2: Convert to fraction form
402,688.20/604,226.70 = 284,104.20/x - Step 3: Cross multiply
402,688.20x = 604,226.70 × 284,104.20 - Step 4: Simplify right side
402,688.20x = 171,663,343,222.14 - Step 5: Solve for x
x = 171,663,343,222.14/402,688.20 - Step 6: Final answer
x = 426,293.45
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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.