Finding the Fourth Proportional to 527,189.20, 727,521.48 and 285,473.68
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Solution
The fourth proportional to 527,189.20, 727,521.48 and 285,473.68 is: 393,953.89
Step by Step Solution
- Step 1: Write the proportion equation
527,189.20 : 727,521.48 = 285,473.68 : x - Step 2: Convert to fraction form
527,189.20/727,521.48 = 285,473.68/x - Step 3: Cross multiply
527,189.20x = 727,521.48 × 285,473.68 - Step 4: Simplify right side
527,189.20x = 207,688,234,174.65 - Step 5: Solve for x
x = 207,688,234,174.65/527,189.20 - Step 6: Final answer
x = 393,953.89
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1.5x scale
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.