Finding the Fourth Proportional to 698,772.30, 964,340.01 and 392,944.98
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Solution
The fourth proportional to 698,772.30, 964,340.01 and 392,944.98 is: 542,283.32
Step by Step Solution
- Step 1: Write the proportion equation
698,772.30 : 964,340.01 = 392,944.98 : x - Step 2: Convert to fraction form
698,772.30/964,340.01 = 392,944.98/x - Step 3: Cross multiply
698,772.30x = 964,340.01 × 392,944.98 - Step 4: Simplify right side
698,772.30x = 378,932,565,942.65 - Step 5: Solve for x
x = 378,932,565,942.65/698,772.30 - Step 6: Final answer
x = 542,283.32
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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.