Finding the Fourth Proportional to 425,709.36, 587,493.09 and 253,603.80
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Solution
The fourth proportional to 425,709.36, 587,493.09 and 253,603.80 is: 349,981.69
Step by Step Solution
- Step 1: Write the proportion equation
425,709.36 : 587,493.09 = 253,603.80 : x - Step 2: Convert to fraction form
425,709.36/587,493.09 = 253,603.80/x - Step 3: Cross multiply
425,709.36x = 587,493.09 × 253,603.80 - Step 4: Simplify right side
425,709.36x = 148,990,480,097.74 - Step 5: Solve for x
x = 148,990,480,097.74/425,709.36 - Step 6: Final answer
x = 349,981.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.