Finding the Fourth Proportional to 687,277.36, 1,031,064.36 and 207,465.44
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Solution
The fourth proportional to 687,277.36, 1,031,064.36 and 207,465.44 is: 311,242.93
Step by Step Solution
- Step 1: Write the proportion equation
687,277.36 : 1,031,064.36 = 207,465.44 : x - Step 2: Convert to fraction form
687,277.36/1,031,064.36 = 207,465.44/x - Step 3: Cross multiply
687,277.36x = 1,031,064.36 × 207,465.44 - Step 4: Simplify right side
687,277.36x = 213,910,221,115.72 - Step 5: Solve for x
x = 213,910,221,115.72/687,277.36 - Step 6: Final answer
x = 311,242.93
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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.