Finding the Fourth Proportional to 859,638.05, 1,289,457.08 and 461,057.30
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Solution
The fourth proportional to 859,638.05, 1,289,457.08 and 461,057.30 is: 691,585.95
Step by Step Solution
- Step 1: Write the proportion equation
859,638.05 : 1,289,457.08 = 461,057.30 : x - Step 2: Convert to fraction form
859,638.05/1,289,457.08 = 461,057.30/x - Step 3: Cross multiply
859,638.05x = 1,289,457.08 × 461,057.30 - Step 4: Simplify right side
859,638.05x = 594,513,599,770.68 - Step 5: Solve for x
x = 594,513,599,770.68/859,638.05 - Step 6: Final answer
x = 691,585.95
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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.