Finding the Fourth Proportional to 508,890.76, 702,241.84 and 282,521.68
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Solution
The fourth proportional to 508,890.76, 702,241.84 and 282,521.68 is: 389,864.70
Step by Step Solution
- Step 1: Write the proportion equation
508,890.76 : 702,241.84 = 282,521.68 : x - Step 2: Convert to fraction form
508,890.76/702,241.84 = 282,521.68/x - Step 3: Cross multiply
508,890.76x = 702,241.84 × 282,521.68 - Step 4: Simplify right side
508,890.76x = 198,398,544,403.09 - Step 5: Solve for x
x = 198,398,544,403.09/508,890.76 - Step 6: Final answer
x = 389,864.70
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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.