Finding the Fourth Proportional to 678,013.71, 935,597.06 and 402,324.05
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Solution
The fourth proportional to 678,013.71, 935,597.06 and 402,324.05 is: 555,170.48
Step by Step Solution
- Step 1: Write the proportion equation
678,013.71 : 935,597.06 = 402,324.05 : x - Step 2: Convert to fraction form
678,013.71/935,597.06 = 402,324.05/x - Step 3: Cross multiply
678,013.71x = 935,597.06 × 402,324.05 - Step 4: Simplify right side
678,013.71x = 376,413,196,335.67 - Step 5: Solve for x
x = 376,413,196,335.67/678,013.71 - Step 6: Final answer
x = 555,170.48
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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.