Finding the Fourth Proportional to 1,189,327.59, 1,641,034.64 and 723,869.70
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Solution
The fourth proportional to 1,189,327.59, 1,641,034.64 and 723,869.70 is: 998,795.67
Step by Step Solution
- Step 1: Write the proportion equation
1,189,327.59 : 1,641,034.64 = 723,869.70 : x - Step 2: Convert to fraction form
1,189,327.59/1,641,034.64 = 723,869.70/x - Step 3: Cross multiply
1,189,327.59x = 1,641,034.64 × 723,869.70 - Step 4: Simplify right side
1,189,327.59x = 1,187,895,244,130.44 - Step 5: Solve for x
x = 1,187,895,244,130.44/1,189,327.59 - Step 6: Final answer
x = 998,795.67
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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.