Finding the Fourth Proportional to 425,324.40, 637,986.61 and 125,781.65
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Solution
The fourth proportional to 425,324.40, 637,986.61 and 125,781.65 is: 188,672.48
Step by Step Solution
- Step 1: Write the proportion equation
425,324.40 : 637,986.61 = 125,781.65 : x - Step 2: Convert to fraction form
425,324.40/637,986.61 = 125,781.65/x - Step 3: Cross multiply
425,324.40x = 637,986.61 × 125,781.65 - Step 4: Simplify right side
425,324.40x = 80,247,008,483.71 - Step 5: Solve for x
x = 80,247,008,483.71/425,324.40 - Step 6: Final answer
x = 188,672.48
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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.