Finding the Fourth Proportional to 523,635.40, 784,934.70 and 257,177.80
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Solution
The fourth proportional to 523,635.40, 784,934.70 and 257,177.80 is: 385,512.09
Step by Step Solution
- Step 1: Write the proportion equation
523,635.40 : 784,934.70 = 257,177.80 : x - Step 2: Convert to fraction form
523,635.40/784,934.70 = 257,177.80/x - Step 3: Cross multiply
523,635.40x = 784,934.70 × 257,177.80 - Step 4: Simplify right side
523,635.40x = 201,867,779,289.66 - Step 5: Solve for x
x = 201,867,779,289.66/523,635.40 - Step 6: Final answer
x = 385,512.09
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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.