Finding the Fourth Proportional to 929,907.20, 1,394,860.80 and 658,281.80
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Solution
The fourth proportional to 929,907.20, 1,394,860.80 and 658,281.80 is: 987,422.70
Step by Step Solution
- Step 1: Write the proportion equation
929,907.20 : 1,394,860.80 = 658,281.80 : x - Step 2: Convert to fraction form
929,907.20/1,394,860.80 = 658,281.80/x - Step 3: Cross multiply
929,907.20x = 1,394,860.80 × 658,281.80 - Step 4: Simplify right side
929,907.20x = 918,211,478,173.44 - Step 5: Solve for x
x = 918,211,478,173.44/929,907.20 - Step 6: Final answer
x = 987,422.70
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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.