Finding the Fourth Proportional to 643,484.54, 888,137.91 and 371,596.70
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Solution
The fourth proportional to 643,484.54, 888,137.91 and 371,596.70 is: 512,878.08
Step by Step Solution
- Step 1: Write the proportion equation
643,484.54 : 888,137.91 = 371,596.70 : x - Step 2: Convert to fraction form
643,484.54/888,137.91 = 371,596.70/x - Step 3: Cross multiply
643,484.54x = 888,137.91 × 371,596.70 - Step 4: Simplify right side
643,484.54x = 330,029,112,060.21 - Step 5: Solve for x
x = 330,029,112,060.21/643,484.54 - Step 6: Final answer
x = 512,878.08
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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.