Finding the Fourth Proportional to 438,574.78, 605,235.04 and 237,370.78
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Solution
The fourth proportional to 438,574.78, 605,235.04 and 237,370.78 is: 327,572.67
Step by Step Solution
- Step 1: Write the proportion equation
438,574.78 : 605,235.04 = 237,370.78 : x - Step 2: Convert to fraction form
438,574.78/605,235.04 = 237,370.78/x - Step 3: Cross multiply
438,574.78x = 605,235.04 × 237,370.78 - Step 4: Simplify right side
438,574.78x = 143,665,113,528.13 - Step 5: Solve for x
x = 143,665,113,528.13/438,574.78 - Step 6: Final answer
x = 327,572.67
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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.