Finding the Fourth Proportional to 1,129,881.92, 1,559,267.50 and 664,768.26
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Solution
The fourth proportional to 1,129,881.92, 1,559,267.50 and 664,768.26 is: 917,398.11
Step by Step Solution
- Step 1: Write the proportion equation
1,129,881.92 : 1,559,267.50 = 664,768.26 : x - Step 2: Convert to fraction form
1,129,881.92/1,559,267.50 = 664,768.26/x - Step 3: Cross multiply
1,129,881.92x = 1,559,267.50 × 664,768.26 - Step 4: Simplify right side
1,129,881.92x = 1,036,551,542,849.55 - Step 5: Solve for x
x = 1,036,551,542,849.55/1,129,881.92 - Step 6: Final answer
x = 917,398.11
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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.