Finding the Fourth Proportional to 698,776.76, 964,214.70 and 392,809.88
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Solution
The fourth proportional to 698,776.76, 964,214.70 and 392,809.88 is: 542,022.98
Step by Step Solution
- Step 1: Write the proportion equation
698,776.76 : 964,214.70 = 392,809.88 : x - Step 2: Convert to fraction form
698,776.76/964,214.70 = 392,809.88/x - Step 3: Cross multiply
698,776.76x = 964,214.70 × 392,809.88 - Step 4: Simplify right side
698,776.76x = 378,753,060,601.24 - Step 5: Solve for x
x = 378,753,060,601.24/698,776.76 - Step 6: Final answer
x = 542,022.98
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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.