Finding the Fourth Proportional to 502,678.66, 693,678.99 and 276,322.54
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Solution
The fourth proportional to 502,678.66, 693,678.99 and 276,322.54 is: 381,315.45
Step by Step Solution
- Step 1: Write the proportion equation
502,678.66 : 693,678.99 = 276,322.54 : x - Step 2: Convert to fraction form
502,678.66/693,678.99 = 276,322.54/x - Step 3: Cross multiply
502,678.66x = 693,678.99 × 276,322.54 - Step 4: Simplify right side
502,678.66x = 191,679,140,461.44 - Step 5: Solve for x
x = 191,679,140,461.44/502,678.66 - Step 6: Final answer
x = 381,315.45
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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.