Finding the Fourth Proportional to 681,202.10, 1,021,803.15 and 521,769.80
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Solution
The fourth proportional to 681,202.10, 1,021,803.15 and 521,769.80 is: 782,654.70
Step by Step Solution
- Step 1: Write the proportion equation
681,202.10 : 1,021,803.15 = 521,769.80 : x - Step 2: Convert to fraction form
681,202.10/1,021,803.15 = 521,769.80/x - Step 3: Cross multiply
681,202.10x = 1,021,803.15 × 521,769.80 - Step 4: Simplify right side
681,202.10x = 533,146,025,214.87 - Step 5: Solve for x
x = 533,146,025,214.87/681,202.10 - Step 6: Final answer
x = 782,654.70
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1.5x scale
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.