Finding the Fourth Proportional to 869,142.40, 1,303,276.20 and 514,265.20
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Solution
The fourth proportional to 869,142.40, 1,303,276.20 and 514,265.20 is: 771,138.99
Step by Step Solution
- Step 1: Write the proportion equation
869,142.40 : 1,303,276.20 = 514,265.20 : x - Step 2: Convert to fraction form
869,142.40/1,303,276.20 = 514,265.20/x - Step 3: Cross multiply
869,142.40x = 1,303,276.20 × 514,265.20 - Step 4: Simplify right side
869,142.40x = 670,229,595,648.24 - Step 5: Solve for x
x = 670,229,595,648.24/869,142.40 - Step 6: Final answer
x = 771,138.99
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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.