Finding the Fourth Proportional to 738,152.79, 1,018,646.19 and 415,966.38
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Solution
The fourth proportional to 738,152.79, 1,018,646.19 and 415,966.38 is: 574,030.98
Step by Step Solution
- Step 1: Write the proportion equation
738,152.79 : 1,018,646.19 = 415,966.38 : x - Step 2: Convert to fraction form
738,152.79/1,018,646.19 = 415,966.38/x - Step 3: Cross multiply
738,152.79x = 1,018,646.19 × 415,966.38 - Step 4: Simplify right side
738,152.79x = 423,722,568,155.09 - Step 5: Solve for x
x = 423,722,568,155.09/738,152.79 - Step 6: Final answer
x = 574,030.98
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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.