Finding the Fourth Proportional to 749,435.12, 1,034,245.17 and 409,903.34
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Solution
The fourth proportional to 749,435.12, 1,034,245.17 and 409,903.34 is: 565,680.12
Step by Step Solution
- Step 1: Write the proportion equation
749,435.12 : 1,034,245.17 = 409,903.34 : x - Step 2: Convert to fraction form
749,435.12/1,034,245.17 = 409,903.34/x - Step 3: Cross multiply
749,435.12x = 1,034,245.17 × 409,903.34 - Step 4: Simplify right side
749,435.12x = 423,940,549,561.87 - Step 5: Solve for x
x = 423,940,549,561.87/749,435.12 - Step 6: Final answer
x = 565,680.12
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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.