Finding the Fourth Proportional to 687,484.70, 948,714.57 and 381,543.26
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Solution
The fourth proportional to 687,484.70, 948,714.57 and 381,543.26 is: 526,521.75
Step by Step Solution
- Step 1: Write the proportion equation
687,484.70 : 948,714.57 = 381,543.26 : x - Step 2: Convert to fraction form
687,484.70/948,714.57 = 381,543.26/x - Step 3: Cross multiply
687,484.70x = 948,714.57 × 381,543.26 - Step 4: Simplify right side
687,484.70x = 361,975,649,847.30 - Step 5: Solve for x
x = 361,975,649,847.30/687,484.70 - Step 6: Final answer
x = 526,521.75
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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.