Finding the Fourth Proportional to 687,494.99, 1,030,910.29 and 288,028.51
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Solution
The fourth proportional to 687,494.99, 1,030,910.29 and 288,028.51 is: 431,903.58
Step by Step Solution
- Step 1: Write the proportion equation
687,494.99 : 1,030,910.29 = 288,028.51 : x - Step 2: Convert to fraction form
687,494.99/1,030,910.29 = 288,028.51/x - Step 3: Cross multiply
687,494.99x = 1,030,910.29 × 288,028.51 - Step 4: Simplify right side
687,494.99x = 296,931,551,475.02 - Step 5: Solve for x
x = 296,931,551,475.02/687,494.99 - Step 6: Final answer
x = 431,903.58
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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.