Finding the Fourth Proportional to 458,202.80, 687,304.20 and 399,153.80
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Solution
The fourth proportional to 458,202.80, 687,304.20 and 399,153.80 is: 598,730.70
Step by Step Solution
- Step 1: Write the proportion equation
458,202.80 : 687,304.20 = 399,153.80 : x - Step 2: Convert to fraction form
458,202.80/687,304.20 = 399,153.80/x - Step 3: Cross multiply
458,202.80x = 687,304.20 × 399,153.80 - Step 4: Simplify right side
458,202.80x = 274,340,083,185.96 - Step 5: Solve for x
x = 274,340,083,185.96/458,202.80 - Step 6: Final answer
x = 598,730.70
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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.