Finding the Fourth Proportional to 1,420,107.90, 2,130,161.85 and 889,266.30
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Solution
The fourth proportional to 1,420,107.90, 2,130,161.85 and 889,266.30 is: 1,333,899.45
Step by Step Solution
- Step 1: Write the proportion equation
1,420,107.90 : 2,130,161.85 = 889,266.30 : x - Step 2: Convert to fraction form
1,420,107.90/2,130,161.85 = 889,266.30/x - Step 3: Cross multiply
1,420,107.90x = 2,130,161.85 × 889,266.30 - Step 4: Simplify right side
1,420,107.90x = 1,894,281,146,750.66 - Step 5: Solve for x
x = 1,894,281,146,750.66/1,420,107.90 - Step 6: Final answer
x = 1,333,899.45
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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.