Finding the Fourth Proportional to 498,113.20, 687,404.10 and 271,758.70
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Solution
The fourth proportional to 498,113.20, 687,404.10 and 271,758.70 is: 375,031.31
Step by Step Solution
- Step 1: Write the proportion equation
498,113.20 : 687,404.10 = 271,758.70 : x - Step 2: Convert to fraction form
498,113.20/687,404.10 = 271,758.70/x - Step 3: Cross multiply
498,113.20x = 687,404.10 × 271,758.70 - Step 4: Simplify right side
498,113.20x = 186,808,044,590.67 - Step 5: Solve for x
x = 186,808,044,590.67/498,113.20 - Step 6: Final answer
x = 375,031.31
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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.