Finding the Fourth Proportional to 678,868.92, 1,018,303.36 and 173,431
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Solution
The fourth proportional to 678,868.92, 1,018,303.36 and 173,431 is: 260,146.49
Step by Step Solution
- Step 1: Write the proportion equation
678,868.92 : 1,018,303.36 = 173,431 : x - Step 2: Convert to fraction form
678,868.92/1,018,303.36 = 173,431/x - Step 3: Cross multiply
678,868.92x = 1,018,303.36 × 173,431 - Step 4: Simplify right side
678,868.92x = 176,605,370,028.16 - Step 5: Solve for x
x = 176,605,370,028.16/678,868.92 - Step 6: Final answer
x = 260,146.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.