Finding the Fourth Proportional to 779,937.21, 1,076,335.43 and 440,456.49
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Solution
The fourth proportional to 779,937.21, 1,076,335.43 and 440,456.49 is: 607,842.42
Step by Step Solution
- Step 1: Write the proportion equation
779,937.21 : 1,076,335.43 = 440,456.49 : x - Step 2: Convert to fraction form
779,937.21/1,076,335.43 = 440,456.49/x - Step 3: Cross multiply
779,937.21x = 1,076,335.43 × 440,456.49 - Step 4: Simplify right side
779,937.21x = 474,078,923,358.16 - Step 5: Solve for x
x = 474,078,923,358.16/779,937.21 - Step 6: Final answer
x = 607,842.42
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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.