Finding the Fourth Proportional to 527,483.91, 791,225.88 and 128,121.99
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Solution
The fourth proportional to 527,483.91, 791,225.88 and 128,121.99 is: 192,182.99
Step by Step Solution
- Step 1: Write the proportion equation
527,483.91 : 791,225.88 = 128,121.99 : x - Step 2: Convert to fraction form
527,483.91/791,225.88 = 128,121.99/x - Step 3: Cross multiply
527,483.91x = 791,225.88 × 128,121.99 - Step 4: Simplify right side
527,483.91x = 101,373,434,673.56 - Step 5: Solve for x
x = 101,373,434,673.56/527,483.91 - Step 6: Final answer
x = 192,182.99
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Similar ratio
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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.