Finding the Fourth Proportional to 678,347.36, 935,929.68 and 423,956.96
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Solution
The fourth proportional to 678,347.36, 935,929.68 and 423,956.96 is: 584,942.06
Step by Step Solution
- Step 1: Write the proportion equation
678,347.36 : 935,929.68 = 423,956.96 : x - Step 2: Convert to fraction form
678,347.36/935,929.68 = 423,956.96/x - Step 3: Cross multiply
678,347.36x = 935,929.68 × 423,956.96 - Step 4: Simplify right side
678,347.36x = 396,793,901,906.57 - Step 5: Solve for x
x = 396,793,901,906.57/678,347.36 - Step 6: Final answer
x = 584,942.06
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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.