Finding the Fourth Proportional to 665,768.07, 998,903.70 and 399,714.05
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Solution
The fourth proportional to 665,768.07, 998,903.70 and 399,714.05 is: 599,722.12
Step by Step Solution
- Step 1: Write the proportion equation
665,768.07 : 998,903.70 = 399,714.05 : x - Step 2: Convert to fraction form
665,768.07/998,903.70 = 399,714.05/x - Step 3: Cross multiply
665,768.07x = 998,903.70 × 399,714.05 - Step 4: Simplify right side
665,768.07x = 399,275,838,492.47 - Step 5: Solve for x
x = 399,275,838,492.47/665,768.07 - Step 6: Final answer
x = 599,722.12
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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.