Finding the Fourth Proportional to 685,842.09, 946,421.59 and 375,682.99
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Solution
The fourth proportional to 685,842.09, 946,421.59 and 375,682.99 is: 518,420.34
Step by Step Solution
- Step 1: Write the proportion equation
685,842.09 : 946,421.59 = 375,682.99 : x - Step 2: Convert to fraction form
685,842.09/946,421.59 = 375,682.99/x - Step 3: Cross multiply
685,842.09x = 946,421.59 × 375,682.99 - Step 4: Simplify right side
685,842.09x = 355,554,492,731.75 - Step 5: Solve for x
x = 355,554,492,731.75/685,842.09 - Step 6: Final answer
x = 518,420.34
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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.