Finding the Fourth Proportional to 678,083.48, 935,767.08 and 372,188.48
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Solution
The fourth proportional to 678,083.48, 935,767.08 and 372,188.48 is: 513,626.62
Step by Step Solution
- Step 1: Write the proportion equation
678,083.48 : 935,767.08 = 372,188.48 : x - Step 2: Convert to fraction form
678,083.48/935,767.08 = 372,188.48/x - Step 3: Cross multiply
678,083.48x = 935,767.08 × 372,188.48 - Step 4: Simplify right side
678,083.48x = 348,281,727,139.24 - Step 5: Solve for x
x = 348,281,727,139.24/678,083.48 - Step 6: Final answer
x = 513,626.62
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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.