Finding the Fourth Proportional to 577,621.80, 866,432.70 and 437,653.80
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Solution
The fourth proportional to 577,621.80, 866,432.70 and 437,653.80 is: 656,480.70
Step by Step Solution
- Step 1: Write the proportion equation
577,621.80 : 866,432.70 = 437,653.80 : x - Step 2: Convert to fraction form
577,621.80/866,432.70 = 437,653.80/x - Step 3: Cross multiply
577,621.80x = 866,432.70 × 437,653.80 - Step 4: Simplify right side
577,621.80x = 379,197,563,599.26 - Step 5: Solve for x
x = 379,197,563,599.26/577,621.80 - Step 6: Final answer
x = 656,480.70
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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.