Finding the Fourth Proportional to 424,621.42, 585,993.68 and 243,368.32
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Solution
The fourth proportional to 424,621.42, 585,993.68 and 243,368.32 is: 335,857.52
Step by Step Solution
- Step 1: Write the proportion equation
424,621.42 : 585,993.68 = 243,368.32 : x - Step 2: Convert to fraction form
424,621.42/585,993.68 = 243,368.32/x - Step 3: Cross multiply
424,621.42x = 585,993.68 × 243,368.32 - Step 4: Simplify right side
424,621.42x = 142,612,296,215.38 - Step 5: Solve for x
x = 142,612,296,215.38/424,621.42 - Step 6: Final answer
x = 335,857.52
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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.