Finding the Fourth Proportional to 1,330,358.70, 1,995,343.65 and 383,630.70
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Solution
The fourth proportional to 1,330,358.70, 1,995,343.65 and 383,630.70 is: 575,389.99
Step by Step Solution
- Step 1: Write the proportion equation
1,330,358.70 : 1,995,343.65 = 383,630.70 : x - Step 2: Convert to fraction form
1,330,358.70/1,995,343.65 = 383,630.70/x - Step 3: Cross multiply
1,330,358.70x = 1,995,343.65 × 383,630.70 - Step 4: Simplify right side
1,330,358.70x = 765,475,081,190.06 - Step 5: Solve for x
x = 765,475,081,190.06/1,330,358.70 - Step 6: Final answer
x = 575,389.99
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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.