Finding the Fourth Proportional to 678,258.21, 935,961.95 and 402,627.84
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Solution
The fourth proportional to 678,258.21, 935,961.95 and 402,627.84 is: 555,606.02
Step by Step Solution
- Step 1: Write the proportion equation
678,258.21 : 935,961.95 = 402,627.84 : x - Step 2: Convert to fraction form
678,258.21/935,961.95 = 402,627.84/x - Step 3: Cross multiply
678,258.21x = 935,961.95 × 402,627.84 - Step 4: Simplify right side
678,258.21x = 376,844,342,242.21 - Step 5: Solve for x
x = 376,844,342,242.21/678,258.21 - Step 6: Final answer
x = 555,606.02
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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.