Finding the Fourth Proportional to 565,466.36, 780,344.16 and 310,812.08
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Solution
The fourth proportional to 565,466.36, 780,344.16 and 310,812.08 is: 428,920.99
Step by Step Solution
- Step 1: Write the proportion equation
565,466.36 : 780,344.16 = 310,812.08 : x - Step 2: Convert to fraction form
565,466.36/780,344.16 = 310,812.08/x - Step 3: Cross multiply
565,466.36x = 780,344.16 × 310,812.08 - Step 4: Simplify right side
565,466.36x = 242,540,391,485.45 - Step 5: Solve for x
x = 242,540,391,485.45/565,466.36 - Step 6: Final answer
x = 428,920.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.