Finding the Fourth Proportional to 1,129,883.42, 1,559,269.57 and 664,769.76
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Solution
The fourth proportional to 1,129,883.42, 1,559,269.57 and 664,769.76 is: 917,400.18
Step by Step Solution
- Step 1: Write the proportion equation
1,129,883.42 : 1,559,269.57 = 664,769.76 : x - Step 2: Convert to fraction form
1,129,883.42/1,559,269.57 = 664,769.76/x - Step 3: Cross multiply
1,129,883.42x = 1,559,269.57 × 664,769.76 - Step 4: Simplify right side
1,129,883.42x = 1,036,555,257,824.20 - Step 5: Solve for x
x = 1,036,555,257,824.20/1,129,883.42 - Step 6: Final answer
x = 917,400.18
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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.