Finding the Fourth Proportional to 628,939.20, 943,408.80 and 560,704.80
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Solution
The fourth proportional to 628,939.20, 943,408.80 and 560,704.80 is: 841,057.20
Step by Step Solution
- Step 1: Write the proportion equation
628,939.20 : 943,408.80 = 560,704.80 : x - Step 2: Convert to fraction form
628,939.20/943,408.80 = 560,704.80/x - Step 3: Cross multiply
628,939.20x = 943,408.80 × 560,704.80 - Step 4: Simplify right side
628,939.20x = 528,973,842,522.24 - Step 5: Solve for x
x = 528,973,842,522.24/628,939.20 - Step 6: Final answer
x = 841,057.20
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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.