Finding the Fourth Proportional to 714,782.05, 1,071,935.21 and 288,207.70
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Solution
The fourth proportional to 714,782.05, 1,071,935.21 and 288,207.70 is: 432,215.64
Step by Step Solution
- Step 1: Write the proportion equation
714,782.05 : 1,071,935.21 = 288,207.70 : x - Step 2: Convert to fraction form
714,782.05/1,071,935.21 = 288,207.70/x - Step 3: Cross multiply
714,782.05x = 1,071,935.21 × 288,207.70 - Step 4: Simplify right side
714,782.05x = 308,939,977,302.24 - Step 5: Solve for x
x = 308,939,977,302.24/714,782.05 - Step 6: Final answer
x = 432,215.64
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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.