Finding the Fourth Proportional to 587,478.09, 810,647.09 and 357,951.99
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Solution
The fourth proportional to 587,478.09, 810,647.09 and 357,951.99 is: 493,929.46
Step by Step Solution
- Step 1: Write the proportion equation
587,478.09 : 810,647.09 = 357,951.99 : x - Step 2: Convert to fraction form
587,478.09/810,647.09 = 357,951.99/x - Step 3: Cross multiply
587,478.09x = 810,647.09 × 357,951.99 - Step 4: Simplify right side
587,478.09x = 290,172,734,805.86 - Step 5: Solve for x
x = 290,172,734,805.86/587,478.09 - Step 6: Final answer
x = 493,929.46
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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.