Finding the Fourth Proportional to 659,648.78, 910,317.07 and 357,842.78
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Solution
The fourth proportional to 659,648.78, 910,317.07 and 357,842.78 is: 493,823.99
Step by Step Solution
- Step 1: Write the proportion equation
659,648.78 : 910,317.07 = 357,842.78 : x - Step 2: Convert to fraction form
659,648.78/910,317.07 = 357,842.78/x - Step 3: Cross multiply
659,648.78x = 910,317.07 × 357,842.78 - Step 4: Simplify right side
659,648.78x = 325,750,391,010.26 - Step 5: Solve for x
x = 325,750,391,010.26/659,648.78 - Step 6: Final answer
x = 493,823.99
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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.