Finding the Fourth Proportional to 438,029.67, 604,489.74 and 247,005.75
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Solution
The fourth proportional to 438,029.67, 604,489.74 and 247,005.75 is: 340,872.89
Step by Step Solution
- Step 1: Write the proportion equation
438,029.67 : 604,489.74 = 247,005.75 : x - Step 2: Convert to fraction form
438,029.67/604,489.74 = 247,005.75/x - Step 3: Cross multiply
438,029.67x = 604,489.74 × 247,005.75 - Step 4: Simplify right side
438,029.67x = 149,312,441,596.01 - Step 5: Solve for x
x = 149,312,441,596.01/438,029.67 - Step 6: Final answer
x = 340,872.89
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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.