Finding the Fourth Proportional to 678,293.11, 935,985.45 and 372,368.26
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Solution
The fourth proportional to 678,293.11, 935,985.45 and 372,368.26 is: 513,835.79
Step by Step Solution
- Step 1: Write the proportion equation
678,293.11 : 935,985.45 = 372,368.26 : x - Step 2: Convert to fraction form
678,293.11/935,985.45 = 372,368.26/x - Step 3: Cross multiply
678,293.11x = 935,985.45 × 372,368.26 - Step 4: Simplify right side
678,293.11x = 348,531,273,401.82 - Step 5: Solve for x
x = 348,531,273,401.82/678,293.11 - Step 6: Final answer
x = 513,835.79
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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.