Finding the Fourth Proportional to 738,445.98, 1,019,041.34 and 416,149.62
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Solution
The fourth proportional to 738,445.98, 1,019,041.34 and 416,149.62 is: 574,278.52
Step by Step Solution
- Step 1: Write the proportion equation
738,445.98 : 1,019,041.34 = 416,149.62 : x - Step 2: Convert to fraction form
738,445.98/1,019,041.34 = 416,149.62/x - Step 3: Cross multiply
738,445.98x = 1,019,041.34 × 416,149.62 - Step 4: Simplify right side
738,445.98x = 424,073,666,405.29 - Step 5: Solve for x
x = 424,073,666,405.29/738,445.98 - Step 6: Final answer
x = 574,278.52
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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.