Finding the Fourth Proportional to 439,775.40, 659,663.10 and 385,537.80
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Solution
The fourth proportional to 439,775.40, 659,663.10 and 385,537.80 is: 578,306.70
Step by Step Solution
- Step 1: Write the proportion equation
439,775.40 : 659,663.10 = 385,537.80 : x - Step 2: Convert to fraction form
439,775.40/659,663.10 = 385,537.80/x - Step 3: Cross multiply
439,775.40x = 659,663.10 × 385,537.80 - Step 4: Simplify right side
439,775.40x = 254,325,060,315.18 - Step 5: Solve for x
x = 254,325,060,315.18/439,775.40 - Step 6: Final answer
x = 578,306.70
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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.