Finding the Fourth Proportional to 860,678.20, 1,187,719.36 and 473,471.00
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Solution
The fourth proportional to 860,678.20, 1,187,719.36 and 473,471.00 is: 653,380.87
Step by Step Solution
- Step 1: Write the proportion equation
860,678.20 : 1,187,719.36 = 473,471.00 : x - Step 2: Convert to fraction form
860,678.20/1,187,719.36 = 473,471.00/x - Step 3: Cross multiply
860,678.20x = 1,187,719.36 × 473,471.00 - Step 4: Simplify right side
860,678.20x = 562,350,665,976.29 - Step 5: Solve for x
x = 562,350,665,976.29/860,678.20 - Step 6: Final answer
x = 653,380.87
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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.