Finding the Fourth Proportional to 982,420.80, 1,474,408.80 and 383,668.80
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Solution
The fourth proportional to 982,420.80, 1,474,408.80 and 383,668.80 is: 575,806.88
Step by Step Solution
- Step 1: Write the proportion equation
982,420.80 : 1,474,408.80 = 383,668.80 : x - Step 2: Convert to fraction form
982,420.80/1,474,408.80 = 383,668.80/x - Step 3: Cross multiply
982,420.80x = 1,474,408.80 × 383,668.80 - Step 4: Simplify right side
982,420.80x = 565,684,655,005.44 - Step 5: Solve for x
x = 565,684,655,005.44/982,420.80 - Step 6: Final answer
x = 575,806.88
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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.