Finding the Fourth Proportional to 1,423,622.84, 1,964,599.74 and 779,043.20
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Solution
The fourth proportional to 1,423,622.84, 1,964,599.74 and 779,043.20 is: 1,075,079.74
Step by Step Solution
- Step 1: Write the proportion equation
1,423,622.84 : 1,964,599.74 = 779,043.20 : x - Step 2: Convert to fraction form
1,423,622.84/1,964,599.74 = 779,043.20/x - Step 3: Cross multiply
1,423,622.84x = 1,964,599.74 × 779,043.20 - Step 4: Simplify right side
1,423,622.84x = 1,530,508,068,168.77 - Step 5: Solve for x
x = 1,530,508,068,168.77/1,423,622.84 - Step 6: Final answer
x = 1,075,079.74
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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.