Finding the Fourth Proportional to 542,829.80, 814,244.70 and 385,365.80
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Solution
The fourth proportional to 542,829.80, 814,244.70 and 385,365.80 is: 578,048.70
Step by Step Solution
- Step 1: Write the proportion equation
542,829.80 : 814,244.70 = 385,365.80 : x - Step 2: Convert to fraction form
542,829.80/814,244.70 = 385,365.80/x - Step 3: Cross multiply
542,829.80x = 814,244.70 × 385,365.80 - Step 4: Simplify right side
542,829.80x = 313,782,060,211.26 - Step 5: Solve for x
x = 313,782,060,211.26/542,829.80 - Step 6: Final answer
x = 578,048.70
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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.