Finding the Fourth Proportional to 769,615.80, 1,154,423.70 and 349,711.80
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Solution
The fourth proportional to 769,615.80, 1,154,423.70 and 349,711.80 is: 524,567.70
Step by Step Solution
- Step 1: Write the proportion equation
769,615.80 : 1,154,423.70 = 349,711.80 : x - Step 2: Convert to fraction form
769,615.80/1,154,423.70 = 349,711.80/x - Step 3: Cross multiply
769,615.80x = 1,154,423.70 × 349,711.80 - Step 4: Simplify right side
769,615.80x = 403,715,590,089.66 - Step 5: Solve for x
x = 403,715,590,089.66/769,615.80 - Step 6: Final answer
x = 524,567.70
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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.