Finding the Fourth Proportional to 1,384,274.24, 1,910,244.84 and 772,395.20
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Solution
The fourth proportional to 1,384,274.24, 1,910,244.84 and 772,395.20 is: 1,065,875.46
Step by Step Solution
- Step 1: Write the proportion equation
1,384,274.24 : 1,910,244.84 = 772,395.20 : x - Step 2: Convert to fraction form
1,384,274.24/1,910,244.84 = 772,395.20/x - Step 3: Cross multiply
1,384,274.24x = 1,910,244.84 × 772,395.20 - Step 4: Simplify right side
1,384,274.24x = 1,475,463,945,240.77 - Step 5: Solve for x
x = 1,475,463,945,240.77/1,384,274.24 - Step 6: Final answer
x = 1,065,875.46
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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.