Finding the Fourth Proportional to 678,161.36, 935,844.18 and 372,237.32
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Solution
The fourth proportional to 678,161.36, 935,844.18 and 372,237.32 is: 513,677.35
Step by Step Solution
- Step 1: Write the proportion equation
678,161.36 : 935,844.18 = 372,237.32 : x - Step 2: Convert to fraction form
678,161.36/935,844.18 = 372,237.32/x - Step 3: Cross multiply
678,161.36x = 935,844.18 × 372,237.32 - Step 4: Simplify right side
678,161.36x = 348,356,129,500.80 - Step 5: Solve for x
x = 348,356,129,500.80/678,161.36 - Step 6: Final answer
x = 513,677.35
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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.