Finding the Fourth Proportional to 438,701.80, 658,052.70 and 320,603.80
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Solution
The fourth proportional to 438,701.80, 658,052.70 and 320,603.80 is: 480,905.70
Step by Step Solution
- Step 1: Write the proportion equation
438,701.80 : 658,052.70 = 320,603.80 : x - Step 2: Convert to fraction form
438,701.80/658,052.70 = 320,603.80/x - Step 3: Cross multiply
438,701.80x = 658,052.70 × 320,603.80 - Step 4: Simplify right side
438,701.80x = 210,974,196,220.26 - Step 5: Solve for x
x = 210,974,196,220.26/438,701.80 - Step 6: Final answer
x = 480,905.70
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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.