Finding the Fourth Proportional to 398,736.20, 598,430.70 and 395,625.80
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Solution
The fourth proportional to 398,736.20, 598,430.70 and 395,625.80 is: 593,762.55
Step by Step Solution
- Step 1: Write the proportion equation
398,736.20 : 598,430.70 = 395,625.80 : x - Step 2: Convert to fraction form
398,736.20/598,430.70 = 395,625.80/x - Step 3: Cross multiply
398,736.20x = 598,430.70 × 395,625.80 - Step 4: Simplify right side
398,736.20x = 236,754,624,432.06 - Step 5: Solve for x
x = 236,754,624,432.06/398,736.20 - Step 6: Final answer
x = 593,762.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.