Finding the Fourth Proportional to 919,478.08, 1,378,049.10 and 413,498.62
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Solution
The fourth proportional to 919,478.08, 1,378,049.10 and 413,498.62 is: 619,722.66
Step by Step Solution
- Step 1: Write the proportion equation
919,478.08 : 1,378,049.10 = 413,498.62 : x - Step 2: Convert to fraction form
919,478.08/1,378,049.10 = 413,498.62/x - Step 3: Cross multiply
919,478.08x = 1,378,049.10 × 413,498.62 - Step 4: Simplify right side
919,478.08x = 569,821,401,142.24 - Step 5: Solve for x
x = 569,821,401,142.24/919,478.08 - Step 6: Final answer
x = 619,722.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.