Finding the Fourth Proportional to 438,485.06, 655,827.64 and 258,140.79
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Solution
The fourth proportional to 438,485.06, 655,827.64 and 258,140.79 is: 386,092.66
Step by Step Solution
- Step 1: Write the proportion equation
438,485.06 : 655,827.64 = 258,140.79 : x - Step 2: Convert to fraction form
438,485.06/655,827.64 = 258,140.79/x - Step 3: Cross multiply
438,485.06x = 655,827.64 × 258,140.79 - Step 4: Simplify right side
438,485.06x = 169,295,864,448.08 - Step 5: Solve for x
x = 169,295,864,448.08/438,485.06 - Step 6: Final answer
x = 386,092.66
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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.