Finding the Fourth Proportional to 526,818.38, 726,931.11 and 319,979.12
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Solution
The fourth proportional to 526,818.38, 726,931.11 and 319,979.12 is: 441,523.66
Step by Step Solution
- Step 1: Write the proportion equation
526,818.38 : 726,931.11 = 319,979.12 : x - Step 2: Convert to fraction form
526,818.38/726,931.11 = 319,979.12/x - Step 3: Cross multiply
526,818.38x = 726,931.11 × 319,979.12 - Step 4: Simplify right side
526,818.38x = 232,602,776,878.42 - Step 5: Solve for x
x = 232,602,776,878.42/526,818.38 - Step 6: Final answer
x = 441,523.66
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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.