Finding the Fourth Proportional to 566,081.41, 781,191.17 and 311,431.99
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Solution
The fourth proportional to 566,081.41, 781,191.17 and 311,431.99 is: 429,775.50
Step by Step Solution
- Step 1: Write the proportion equation
566,081.41 : 781,191.17 = 311,431.99 : x - Step 2: Convert to fraction form
566,081.41/781,191.17 = 311,431.99/x - Step 3: Cross multiply
566,081.41x = 781,191.17 × 311,431.99 - Step 4: Simplify right side
566,081.41x = 243,287,916,737.57 - Step 5: Solve for x
x = 243,287,916,737.57/566,081.41 - Step 6: Final answer
x = 429,775.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.