Finding the Fourth Proportional to 567,143.21, 782,712.79 and 423,654.14
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Solution
The fourth proportional to 567,143.21, 782,712.79 and 423,654.14 is: 584,683.92
Step by Step Solution
- Step 1: Write the proportion equation
567,143.21 : 782,712.79 = 423,654.14 : x - Step 2: Convert to fraction form
567,143.21/782,712.79 = 423,654.14/x - Step 3: Cross multiply
567,143.21x = 782,712.79 × 423,654.14 - Step 4: Simplify right side
567,143.21x = 331,599,514,812.10 - Step 5: Solve for x
x = 331,599,514,812.10/567,143.21 - Step 6: Final answer
x = 584,683.92
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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.