Finding the Fourth Proportional to 1,647,201.30, 2,470,801.95 and 1,387,385.70
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Solution
The fourth proportional to 1,647,201.30, 2,470,801.95 and 1,387,385.70 is: 2,081,078.55
Step by Step Solution
- Step 1: Write the proportion equation
1,647,201.30 : 2,470,801.95 = 1,387,385.70 : x - Step 2: Convert to fraction form
1,647,201.30/2,470,801.95 = 1,387,385.70/x - Step 3: Cross multiply
1,647,201.30x = 2,470,801.95 × 1,387,385.70 - Step 4: Simplify right side
1,647,201.30x = 3,427,955,292,962.12 - Step 5: Solve for x
x = 3,427,955,292,962.12/1,647,201.30 - Step 6: Final answer
x = 2,081,078.55
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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.