Finding the Fourth Proportional to 671,311.36, 1,006,261.76 and 338,188.80
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Solution
The fourth proportional to 671,311.36, 1,006,261.76 and 338,188.80 is: 506,927.90
Step by Step Solution
- Step 1: Write the proportion equation
671,311.36 : 1,006,261.76 = 338,188.80 : x - Step 2: Convert to fraction form
671,311.36/1,006,261.76 = 338,188.80/x - Step 3: Cross multiply
671,311.36x = 1,006,261.76 × 338,188.80 - Step 4: Simplify right side
671,311.36x = 340,306,457,100.29 - Step 5: Solve for x
x = 340,306,457,100.29/671,311.36 - Step 6: Final answer
x = 506,927.90
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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.