Finding the Fourth Proportional to 883,939.21, 1,219,778.67 and 521,279.95
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Solution
The fourth proportional to 883,939.21, 1,219,778.67 and 521,279.95 is: 719,332.46
Step by Step Solution
- Step 1: Write the proportion equation
883,939.21 : 1,219,778.67 = 521,279.95 : x - Step 2: Convert to fraction form
883,939.21/1,219,778.67 = 521,279.95/x - Step 3: Cross multiply
883,939.21x = 1,219,778.67 × 521,279.95 - Step 4: Simplify right side
883,939.21x = 635,846,164,108.67 - Step 5: Solve for x
x = 635,846,164,108.67/883,939.21 - Step 6: Final answer
x = 719,332.46
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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.