Finding the Fourth Proportional to 438,636.27, 657,036.56 and 352,783.12
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Solution
The fourth proportional to 438,636.27, 657,036.56 and 352,783.12 is: 528,436.49
Step by Step Solution
- Step 1: Write the proportion equation
438,636.27 : 657,036.56 = 352,783.12 : x - Step 2: Convert to fraction form
438,636.27/657,036.56 = 352,783.12/x - Step 3: Cross multiply
438,636.27x = 657,036.56 × 352,783.12 - Step 4: Simplify right side
438,636.27x = 231,791,406,830.23 - Step 5: Solve for x
x = 231,791,406,830.23/438,636.27 - Step 6: Final answer
x = 528,436.49
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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.