Finding the Fourth Proportional to 1,149,151.20, 1,586,107.68 and 665,638.08
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Solution
The fourth proportional to 1,149,151.20, 1,586,107.68 and 665,638.08 is: 918,742.17
Step by Step Solution
- Step 1: Write the proportion equation
1,149,151.20 : 1,586,107.68 = 665,638.08 : x - Step 2: Convert to fraction form
1,149,151.20/1,586,107.68 = 665,638.08/x - Step 3: Cross multiply
1,149,151.20x = 1,586,107.68 × 665,638.08 - Step 4: Simplify right side
1,149,151.20x = 1,055,773,670,788.45 - Step 5: Solve for x
x = 1,055,773,670,788.45/1,149,151.20 - Step 6: Final answer
x = 918,742.17
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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.