Finding the Fourth Proportional to 885,890.99, 1,329,030.28 and 286,912.70
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Solution
The fourth proportional to 885,890.99, 1,329,030.28 and 286,912.70 is: 430,431.81
Step by Step Solution
- Step 1: Write the proportion equation
885,890.99 : 1,329,030.28 = 286,912.70 : x - Step 2: Convert to fraction form
885,890.99/1,329,030.28 = 286,912.70/x - Step 3: Cross multiply
885,890.99x = 1,329,030.28 × 286,912.70 - Step 4: Simplify right side
885,890.99x = 381,315,666,016.56 - Step 5: Solve for x
x = 381,315,666,016.56/885,890.99 - Step 6: Final answer
x = 430,431.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.