Finding the Fourth Proportional to 782,236.96, 1,079,397.68 and 438,025.02
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Solution
The fourth proportional to 782,236.96, 1,079,397.68 and 438,025.02 is: 604,424.51
Step by Step Solution
- Step 1: Write the proportion equation
782,236.96 : 1,079,397.68 = 438,025.02 : x - Step 2: Convert to fraction form
782,236.96/1,079,397.68 = 438,025.02/x - Step 3: Cross multiply
782,236.96x = 1,079,397.68 × 438,025.02 - Step 4: Simplify right side
782,236.96x = 472,803,190,369.95 - Step 5: Solve for x
x = 472,803,190,369.95/782,236.96 - Step 6: Final answer
x = 604,424.51
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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.