Finding the Fourth Proportional to 1,418,803.70, 2,128,205.55 and 472,205.30
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Solution
The fourth proportional to 1,418,803.70, 2,128,205.55 and 472,205.30 is: 708,307.95
Step by Step Solution
- Step 1: Write the proportion equation
1,418,803.70 : 2,128,205.55 = 472,205.30 : x - Step 2: Convert to fraction form
1,418,803.70/2,128,205.55 = 472,205.30/x - Step 3: Cross multiply
1,418,803.70x = 2,128,205.55 × 472,205.30 - Step 4: Simplify right side
1,418,803.70x = 1,004,949,940,199.41 - Step 5: Solve for x
x = 1,004,949,940,199.41/1,418,803.70 - Step 6: Final answer
x = 708,307.95
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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.