Finding the Fourth Proportional to 712,048.20, 982,627.99 and 389,778.88
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Solution
The fourth proportional to 712,048.20, 982,627.99 and 389,778.88 is: 537,895.66
Step by Step Solution
- Step 1: Write the proportion equation
712,048.20 : 982,627.99 = 389,778.88 : x - Step 2: Convert to fraction form
712,048.20/982,627.99 = 389,778.88/x - Step 3: Cross multiply
712,048.20x = 982,627.99 × 389,778.88 - Step 4: Simplify right side
712,048.20x = 383,007,637,398.85 - Step 5: Solve for x
x = 383,007,637,398.85/712,048.20 - Step 6: Final answer
x = 537,895.66
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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.