Finding the Fourth Proportional to 705,813.44, 1,058,455.20 and 256,423.28
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Solution
The fourth proportional to 705,813.44, 1,058,455.20 and 256,423.28 is: 384,538.66
Step by Step Solution
- Step 1: Write the proportion equation
705,813.44 : 1,058,455.20 = 256,423.28 : x - Step 2: Convert to fraction form
705,813.44/1,058,455.20 = 256,423.28/x - Step 3: Cross multiply
705,813.44x = 1,058,455.20 × 256,423.28 - Step 4: Simplify right side
705,813.44x = 271,412,554,117.06 - Step 5: Solve for x
x = 271,412,554,117.06/705,813.44 - Step 6: Final answer
x = 384,538.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.