Finding the Fourth Proportional to 438,707.97, 605,457.86 and 266,586.21
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Solution
The fourth proportional to 438,707.97, 605,457.86 and 266,586.21 is: 367,913.80
Step by Step Solution
- Step 1: Write the proportion equation
438,707.97 : 605,457.86 = 266,586.21 : x - Step 2: Convert to fraction form
438,707.97/605,457.86 = 266,586.21/x - Step 3: Cross multiply
438,707.97x = 605,457.86 × 266,586.21 - Step 4: Simplify right side
438,707.97x = 161,406,714,879.18 - Step 5: Solve for x
x = 161,406,714,879.18/438,707.97 - Step 6: Final answer
x = 367,913.80
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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.