Finding the Fourth Proportional to 819,701.64, 1,131,186.06 and 457,125.92
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Solution
The fourth proportional to 819,701.64, 1,131,186.06 and 457,125.92 is: 630,832.54
Step by Step Solution
- Step 1: Write the proportion equation
819,701.64 : 1,131,186.06 = 457,125.92 : x - Step 2: Convert to fraction form
819,701.64/1,131,186.06 = 457,125.92/x - Step 3: Cross multiply
819,701.64x = 1,131,186.06 × 457,125.92 - Step 4: Simplify right side
819,701.64x = 517,094,468,368.68 - Step 5: Solve for x
x = 517,094,468,368.68/819,701.64 - Step 6: Final answer
x = 630,832.54
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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.