Finding the Fourth Proportional to 698,719.08, 964,112.19 and 392,753.01
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Solution
The fourth proportional to 698,719.08, 964,112.19 and 392,753.01 is: 541,931.62
Step by Step Solution
- Step 1: Write the proportion equation
698,719.08 : 964,112.19 = 392,753.01 : x - Step 2: Convert to fraction form
698,719.08/964,112.19 = 392,753.01/x - Step 3: Cross multiply
698,719.08x = 964,112.19 × 392,753.01 - Step 4: Simplify right side
698,719.08x = 378,657,964,600.19 - Step 5: Solve for x
x = 378,657,964,600.19/698,719.08 - Step 6: Final answer
x = 541,931.62
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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.