Finding the Fourth Proportional to 878,698.80, 1,318,048.20 and 524,113.20
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Solution
The fourth proportional to 878,698.80, 1,318,048.20 and 524,113.20 is: 786,169.80
Step by Step Solution
- Step 1: Write the proportion equation
878,698.80 : 1,318,048.20 = 524,113.20 : x - Step 2: Convert to fraction form
878,698.80/1,318,048.20 = 524,113.20/x - Step 3: Cross multiply
878,698.80x = 1,318,048.20 × 524,113.20 - Step 4: Simplify right side
878,698.80x = 690,806,459,856.24 - Step 5: Solve for x
x = 690,806,459,856.24/878,698.80 - Step 6: Final answer
x = 786,169.80
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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.