Finding the Fourth Proportional to 752,491.34, 1,038,142.42 and 430,028.44
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Solution
The fourth proportional to 752,491.34, 1,038,142.42 and 430,028.44 is: 593,270.30
Step by Step Solution
- Step 1: Write the proportion equation
752,491.34 : 1,038,142.42 = 430,028.44 : x - Step 2: Convert to fraction form
752,491.34/1,038,142.42 = 430,028.44/x - Step 3: Cross multiply
752,491.34x = 1,038,142.42 × 430,028.44 - Step 4: Simplify right side
752,491.34x = 446,430,765,370.43 - Step 5: Solve for x
x = 446,430,765,370.43/752,491.34 - Step 6: Final answer
x = 593,270.30
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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.