Finding the Fourth Proportional to 687,593.66, 1,031,601.65 and 328,223.09
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Solution
The fourth proportional to 687,593.66, 1,031,601.65 and 328,223.09 is: 492,435.44
Step by Step Solution
- Step 1: Write the proportion equation
687,593.66 : 1,031,601.65 = 328,223.09 : x - Step 2: Convert to fraction form
687,593.66/1,031,601.65 = 328,223.09/x - Step 3: Cross multiply
687,593.66x = 1,031,601.65 × 328,223.09 - Step 4: Simplify right side
687,593.66x = 338,595,482,149.99 - Step 5: Solve for x
x = 338,595,482,149.99/687,593.66 - Step 6: Final answer
x = 492,435.44
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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.