Finding the Fourth Proportional to 1,028.08, 1,418.78 and 586
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Solution
The fourth proportional to 1,028.08, 1,418.78 and 586 is: 808.70
Step by Step Solution
- Step 1: Write the proportion equation
1,028.08 : 1,418.78 = 586 : x - Step 2: Convert to fraction form
1,028.08/1,418.78 = 586/x - Step 3: Cross multiply
1,028.08x = 1,418.78 × 586 - Step 4: Simplify right side
1,028.08x = 831,405.08 - Step 5: Solve for x
x = 831,405.08/1,028.08 - Step 6: Final answer
x = 808.70
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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.