Finding the Fourth Proportional to 886,487.13, 1,329,730.73 and 221,639.13
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Solution
The fourth proportional to 886,487.13, 1,329,730.73 and 221,639.13 is: 332,458.70
Step by Step Solution
- Step 1: Write the proportion equation
886,487.13 : 1,329,730.73 = 221,639.13 : x - Step 2: Convert to fraction form
886,487.13/1,329,730.73 = 221,639.13/x - Step 3: Cross multiply
886,487.13x = 1,329,730.73 × 221,639.13 - Step 4: Simplify right side
886,487.13x = 294,720,362,131.47 - Step 5: Solve for x
x = 294,720,362,131.47/886,487.13 - Step 6: Final answer
x = 332,458.70
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1.5x scale
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.