Finding the Fourth Proportional to 492,328.14, 679,152.45 and 339,102.81
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Solution
The fourth proportional to 492,328.14, 679,152.45 and 339,102.81 is: 467,782.53
Step by Step Solution
- Step 1: Write the proportion equation
492,328.14 : 679,152.45 = 339,102.81 : x - Step 2: Convert to fraction form
492,328.14/679,152.45 = 339,102.81/x - Step 3: Cross multiply
492,328.14x = 679,152.45 × 339,102.81 - Step 4: Simplify right side
492,328.14x = 230,302,504,213.39 - Step 5: Solve for x
x = 230,302,504,213.39/492,328.14 - Step 6: Final answer
x = 467,782.53
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1.5x scale
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.