Finding the Fourth Proportional to 629,119.19, 868,270.10 and 371,069.12
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Solution
The fourth proportional to 629,119.19, 868,270.10 and 371,069.12 is: 512,125.88
Step by Step Solution
- Step 1: Write the proportion equation
629,119.19 : 868,270.10 = 371,069.12 : x - Step 2: Convert to fraction form
629,119.19/868,270.10 = 371,069.12/x - Step 3: Cross multiply
629,119.19x = 868,270.10 × 371,069.12 - Step 4: Simplify right side
629,119.19x = 322,188,221,929.31 - Step 5: Solve for x
x = 322,188,221,929.31/629,119.19 - Step 6: Final answer
x = 512,125.88
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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.