Finding the Fourth Proportional to 865,396.58, 1,194,240.74 and 478,238.10
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Solution
The fourth proportional to 865,396.58, 1,194,240.74 and 478,238.10 is: 659,964.96
Step by Step Solution
- Step 1: Write the proportion equation
865,396.58 : 1,194,240.74 = 478,238.10 : x - Step 2: Convert to fraction form
865,396.58/1,194,240.74 = 478,238.10/x - Step 3: Cross multiply
865,396.58x = 1,194,240.74 × 478,238.10 - Step 4: Simplify right side
865,396.58x = 571,131,420,049.00 - Step 5: Solve for x
x = 571,131,420,049.00/865,396.58 - Step 6: Final answer
x = 659,964.96
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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.