Finding the Fourth Proportional to 782,337.84, 1,078,711.80 and 725,650.80
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Solution
The fourth proportional to 782,337.84, 1,078,711.80 and 725,650.80 is: 1,000,549.94
Step by Step Solution
- Step 1: Write the proportion equation
782,337.84 : 1,078,711.80 = 725,650.80 : x - Step 2: Convert to fraction form
782,337.84/1,078,711.80 = 725,650.80/x - Step 3: Cross multiply
782,337.84x = 1,078,711.80 × 725,650.80 - Step 4: Simplify right side
782,337.84x = 782,768,080,639.44 - Step 5: Solve for x
x = 782,768,080,639.44/782,337.84 - Step 6: Final answer
x = 1,000,549.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.