Finding the Fourth Proportional to 571,451.38, 856,424.95 and 318,850.79
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Solution
The fourth proportional to 571,451.38, 856,424.95 and 318,850.79 is: 477,856.52
Step by Step Solution
- Step 1: Write the proportion equation
571,451.38 : 856,424.95 = 318,850.79 : x - Step 2: Convert to fraction form
571,451.38/856,424.95 = 318,850.79/x - Step 3: Cross multiply
571,451.38x = 856,424.95 × 318,850.79 - Step 4: Simplify right side
571,451.38x = 273,071,766,803.96 - Step 5: Solve for x
x = 273,071,766,803.96/571,451.38 - Step 6: Final answer
x = 477,856.52
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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.