Finding the Fourth Proportional to 871,639.87, 1,306,710.88 and 302,947.09
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Solution
The fourth proportional to 871,639.87, 1,306,710.88 and 302,947.09 is: 454,160.34
Step by Step Solution
- Step 1: Write the proportion equation
871,639.87 : 1,306,710.88 = 302,947.09 : x - Step 2: Convert to fraction form
871,639.87/1,306,710.88 = 302,947.09/x - Step 3: Cross multiply
871,639.87x = 1,306,710.88 × 302,947.09 - Step 4: Simplify right side
871,639.87x = 395,864,258,567.34 - Step 5: Solve for x
x = 395,864,258,567.34/871,639.87 - Step 6: Final answer
x = 454,160.34
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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.