Finding the Fourth Proportional to 998,157.90, 1,497,236.85 and 366,989.70
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Solution
The fourth proportional to 998,157.90, 1,497,236.85 and 366,989.70 is: 550,484.55
Step by Step Solution
- Step 1: Write the proportion equation
998,157.90 : 1,497,236.85 = 366,989.70 : x - Step 2: Convert to fraction form
998,157.90/1,497,236.85 = 366,989.70/x - Step 3: Cross multiply
998,157.90x = 1,497,236.85 × 366,989.70 - Step 4: Simplify right side
998,157.90x = 549,470,502,410.45 - Step 5: Solve for x
x = 549,470,502,410.45/998,157.90 - Step 6: Final answer
x = 550,484.55
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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.