Finding the Fourth Proportional to 640,242.10, 959,600.12 and 298,226.62
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Solution
The fourth proportional to 640,242.10, 959,600.12 and 298,226.62 is: 446,984.50
Step by Step Solution
- Step 1: Write the proportion equation
640,242.10 : 959,600.12 = 298,226.62 : x - Step 2: Convert to fraction form
640,242.10/959,600.12 = 298,226.62/x - Step 3: Cross multiply
640,242.10x = 959,600.12 × 298,226.62 - Step 4: Simplify right side
640,242.10x = 286,178,295,541.19 - Step 5: Solve for x
x = 286,178,295,541.19/640,242.10 - Step 6: Final answer
x = 446,984.50
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1.5x scale
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.