Finding the Fourth Proportional to 913,115.70, 1,369,673.55 and 440,723.70
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Solution
The fourth proportional to 913,115.70, 1,369,673.55 and 440,723.70 is: 661,085.55
Step by Step Solution
- Step 1: Write the proportion equation
913,115.70 : 1,369,673.55 = 440,723.70 : x - Step 2: Convert to fraction form
913,115.70/1,369,673.55 = 440,723.70/x - Step 3: Cross multiply
913,115.70x = 1,369,673.55 × 440,723.70 - Step 4: Simplify right side
913,115.70x = 603,647,594,748.14 - Step 5: Solve for x
x = 603,647,594,748.14/913,115.70 - Step 6: Final answer
x = 661,085.55
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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.