Finding the Fourth Proportional to 644,269.75, 889,119.08 and 357,792.19
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Solution
The fourth proportional to 644,269.75, 889,119.08 and 357,792.19 is: 493,768.12
Step by Step Solution
- Step 1: Write the proportion equation
644,269.75 : 889,119.08 = 357,792.19 : x - Step 2: Convert to fraction form
644,269.75/889,119.08 = 357,792.19/x - Step 3: Cross multiply
644,269.75x = 889,119.08 × 357,792.19 - Step 4: Simplify right side
644,269.75x = 318,119,860,133.95 - Step 5: Solve for x
x = 318,119,860,133.95/644,269.75 - Step 6: Final answer
x = 493,768.12
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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.