Finding the Fourth Proportional to 678,027.11, 935,596.58 and 402,341.18
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Solution
The fourth proportional to 678,027.11, 935,596.58 and 402,341.18 is: 555,182.86
Step by Step Solution
- Step 1: Write the proportion equation
678,027.11 : 935,596.58 = 402,341.18 : x - Step 2: Convert to fraction form
678,027.11/935,596.58 = 402,341.18/x - Step 3: Cross multiply
678,027.11x = 935,596.58 × 402,341.18 - Step 4: Simplify right side
678,027.11x = 376,429,025,311.48 - Step 5: Solve for x
x = 376,429,025,311.48/678,027.11 - Step 6: Final answer
x = 555,182.86
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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.