Finding the Fourth Proportional to 868,262.25, 1,198,201.91 and 486,412.05
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Solution
The fourth proportional to 868,262.25, 1,198,201.91 and 486,412.05 is: 671,248.63
Step by Step Solution
- Step 1: Write the proportion equation
868,262.25 : 1,198,201.91 = 486,412.05 : x - Step 2: Convert to fraction form
868,262.25/1,198,201.91 = 486,412.05/x - Step 3: Cross multiply
868,262.25x = 1,198,201.91 × 486,412.05 - Step 4: Simplify right side
868,262.25x = 582,819,844,924.96 - Step 5: Solve for x
x = 582,819,844,924.96/868,262.25 - Step 6: Final answer
x = 671,248.63
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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.