Finding the Fourth Proportional to 752,491.85, 1,038,143.12 and 430,028.94
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Solution
The fourth proportional to 752,491.85, 1,038,143.12 and 430,028.94 is: 593,270.99
Step by Step Solution
- Step 1: Write the proportion equation
752,491.85 : 1,038,143.12 = 430,028.94 : x - Step 2: Convert to fraction form
752,491.85/1,038,143.12 = 430,028.94/x - Step 3: Cross multiply
752,491.85x = 1,038,143.12 × 430,028.94 - Step 4: Simplify right side
752,491.85x = 446,431,583,311.75 - Step 5: Solve for x
x = 446,431,583,311.75/752,491.85 - Step 6: Final answer
x = 593,270.99
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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.