Finding the Fourth Proportional to 438,515.28, 604,646.64 and 323,959.68
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Solution
The fourth proportional to 438,515.28, 604,646.64 and 323,959.68 is: 446,691.69
Step by Step Solution
- Step 1: Write the proportion equation
438,515.28 : 604,646.64 = 323,959.68 : x - Step 2: Convert to fraction form
438,515.28/604,646.64 = 323,959.68/x - Step 3: Cross multiply
438,515.28x = 604,646.64 × 323,959.68 - Step 4: Simplify right side
438,515.28x = 195,881,132,007.48 - Step 5: Solve for x
x = 195,881,132,007.48/438,515.28 - Step 6: Final answer
x = 446,691.69
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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.